Variable star observations

Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for July 13 + 18/19, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20200713.8986 CrB R 6.3 BMM 61-65 A20090314 8 x B 40 Hipparcos


Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20200719.0 And SX 13.2 BMM 131-135 E071211 156 x SC 203 TASS-V + CCDV Henden
20200718.9 Aql LO 14.2 BMM 140 E181202 226 x SC 203 ASAS-3(V) + CCDV APASS
20200718.9 Aql SY 10.3 BMM 102-108 D090906 51 x SC 203 ASAS-3(V) + CCDV Henden
20200718.9 Cyg DG 10.9 BMM 107-113 E090508 51 x SC 203 TASS-V + CCDV Henden
20200718.9 Cyg FL 11.8 BMM 114-118-122 E070520 51 x SC 203 Tycho-2 + CCDV Henden
20200718.9 Cyg WY <14.4 BMM 144 E080523 226 x SC 203 Tycho-2 + CCDV Henden
20200718.9 Del RX 14.0 BMM 139-141 E130330 226 x SC 203 ASAS-3(V) + CCDV APASS
20200718.9 Del SS 12.0 BMM 119-124 E150803 85 x SC 203 ASAS-3(V) + CCDV APASS
20200718.9 Her AE 13.5 BMM 134-136 E080805 127 x SC 203 ASAS-3(V) + CCDV Henden
20200718.9 Her DS <14.3 BMM 143 E080511 226 x SC 203 ASAS-3(V) + CCDV Henden
20200718.9 Her SV 13.8 BMM 134-138-140 E091017 156 x SC 203 ASAS-3(V) + CCDV Henden
20200718.9 Her VY 10.6 BMM 101-106-110 C120326 51 x SC 203 ASAS-3(V) + CCDV APASS
20200718.9 Lac W 13.4 BMM 133-138 E071213 156 x SC 203 TASS-V + CCDV Henden
20200718.9 Lyr RX 13.2 BMM 130-134 E090210 85 x SC 203 TASS-V + CCDV Henden
20200718.9 Lyr RY 11.6 BMM 114-120 E090512 51 x SC 203 TASS-V + CCDV Henden
20200718.9 Oph V970 <14.3 BMM 143 D130402 290 x SC 203 ASAS-3(V) + CCDV APASS
20200718.9 Peg TV 9.8 BMM 95-99 D120621 37 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for July 20, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20200720.9431 CrB R 6.4 BMM 61-65 A20090314 8 x B 40 Hipparcos

LPV

20200720.9 Aql TV 11.6 BMM 114-117 D080510 51 x SC 203 ASAS-3(V) + CCDV Henden
20200720.9 Cyg DW 13.7 BMM 134-140 E080511 226 x SC 203 ASAS-3(V) + CCDV Henden
20200720.9 Del RU <14.7 BMM 147 E181201 226 x SC 203 ASAS-3(V) + CCDV Henden
20200720.9 Her XZ 13.3 BMM 130-136 E080805 156 x SC 203 ASAS-3(V) + CCDV Henden
20200720.9 Lyr AN 13.5 BMM 132-136 E031130 127 x SC 203 TASS-V + CCDV Henden
20200720.9 Lyr EL <14.4 BMM 144 E181201 226 x SC 203 TASS-V + CCDV APASS
20200720.9 Lyr TV 11.2 BMM 109-114 E150325 51 x SC 203 Tycho-2 + CCDV APASS
20200720.9 Peg AP 14.1 BMM 139-144 E130710 185 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for July 30/31, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20200730.9 Aql LO <14.0 BMM 140 E181202 226 x SC 203 ASAS-3(V) + CCDV APASS
20200731.0 Aql SY 10.6 BMM 102-108 E090906 37 x SC 203 ASAS-3(V) + CCDV Henden
20200731.0 Aql TV 11.2 BMM 108-114 E080510 85 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Cyg DW 12.8 BMM 123-130 E080511 156 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Cyg FL 12.1 BMM 118-122 E070520 85 x SC 203 Tycho-2 + CCDV Henden
20200730.9 Her AE 13.0 BMM 128-132 E080805 127 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Her DS <14.0 BMM 140 E080511 226 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Her SV 14.2 BMM 140-145 E091017 226 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Her VY 10.4 BMM 101-106 C120326 51 x SC 203 ASAS-3(V) + CCDV APASS
20200730.9 Her XZ 12.7 BMM 125-129 E080805 127 x SC 203 ASAS-3(V) + CCDV Henden
20200730.9 Lyr AN 12.6 BMM 125-129 E031130 85 x SC 203 TASS-V + CCDV Henden
20200730.9 Lyr EL <14.4 BMM 144 E181201 226 x SC 203 TASS-V + CCDV APASS
20200730.9 Lyr RX 13.5 BMM 134-137 E090210 226 x SC 203 TASS-V + CCDV Henden
20200730.9 Lyr RY 12.1 BMM 120-122 E090512 85 x SC 203 TASS-V + CCDV Henden
20200730.9 Lyr TV 12.1 BMM 119-121-127 E150325 85 x SC 203 Tycho-2 + CCDV APASS
20200730.9 Oph V970 <13.5 BMM 135 D130402 226 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Aug. 18/19, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20200819.0 And SX 11.6 BMM 115-120 E071211 51 x SC 203 TASS-V + CCDV Henden
20200818.9 Aql SY 10.6 BMM 102-108 E090906 51 x SC 203 ASAS-3(V) + CCDV Henden
20200818.9 Cyg DG 11.5 BMM 113-115-120 E090508 51 x SC 203 TASS-V + CCDV Henden
20200818.9 Cyg FL 13.3 BMM 131-134 E070520 127 x SC 203 Tycho-2 + CCDV Henden
20200818.9 Cyg WY 13.8 BMM 137-140 E080523 226 x SC 203 Tycho-2 + CCDV Henden
20200818.9 Del RX <14.4 BMM 144 E130330 226 x SC 203 ASAS-3(V) + CCDV APASS
20200818.9 Del SS 13.0 BMM 127-132 E150803 127 x SC 203 ASAS-3(V) + CCDV APASS
20200818.9 Her AE 10.7 BMM 105-110 C080805 51 x SC 203 ASAS-3(V) + CCDV Henden
20200818.9 Her DS <14.0 BMM 140 E080511 226 x SC 203 ASAS-3(V) + CCDV Henden
20200818.9 Her SV <14.0 BMM 140 E091017 226 x SC 203 ASAS-3(V) + CCDV Henden
20200818.9 Lac W 12.8 BMM 123-130 E071213 85 x SC 203 TASS-V + CCDV Henden
20200818.9 Lyr RX 14.6 BMM 142-150 E090210 254 x SC 203 TASS-V + CCDV Henden
20200818.9 Lyr RY 12.5 BMM 122-125-130 E090512 85 x SC 203 TASS-V + CCDV Henden
20200818.9 Oph V970 <13.5 BMM 135 D130402 226 x SC 203 ASAS-3(V) + CCDV APASS
20200819.0 Peg DL 10.6 BMM 104-109 D080704 51 x SC 203 ASAS-3(V) + CCDV Henden
20200818.9 Peg TV 10.8 BMM 107-110 D120621 51 x SC 203 ASAS-3(V) + CCDV APASS
20200819.0 Psc W 11.2 BMM 109-114 D100318 51 x SC 203 ASAS-3(V) + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Aug. 21, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20200821.8507 CrB R 6.3 BMM 61-65 A20090314 8 x B 40 Hipparcos

Regards,
Marc
 
Observer: Marc Biesmans, Saint-Laurent-de-la-Salanque (dept. Pyr. Orient.), France
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Sep. 12, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20200912.8743 CrB R 6.3 BMM 61-65 A20090314 8 x B 40 Hipparcos

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 115 mm f/7 triplet apo refractor on Astro-Physics AP 600E GTO mount (R 115)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Nov. 06, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201106.7 Del R 10.9 BMM 107-111 E090528 89 x R 115 ASAS-3(V) + CCDV Henden
20201106.7 Her T 9.3 BMM 92-97 B201013 50 x R 115 TASS-V + CCDV APASS
20201106.8 Lac S 10.2 BMM 102-104 D201105 33 x R 115 TASS-V + CCDV APASS
20201106.7 Lyr TX 12.7 BMM 124-128 D140718 160 x R 115 CCDV APASS
20201106.8 Peg DL 12.4 BMM 123-125 D080704 89 x R 115 ASAS-3(V) + CCDV Henden
20201106.8 Peg R 12.5 BMM 123-126 D201026 89 x R 115 ASAS-3(V) + CCDV APASS
20201106.8 Peg S 12.2 BMM 120-123 D111208 89 x R 115 ASAS-3(V) + CCDV APASS
20201106.8 Peg SS 12.1 BMM 119-122 D111208 89 x R 115 ASAS-3(V) + CCDV Henden
20201106.8 Peg W 12.1 BMM 119-124 D120210 62 x R 115 ASAS-3(V) + CCDV Henden
20201106.8 Peg Z 11.2 BMM 109-112 D201029 50 x R 115 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP 600E GTO mount (SC 203)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Nov. 12, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201112.7 Aql SY 13.3 BMM 132-138 E090906 226 x SC 203 ASAS-3(V) + CCDV Henden
20201112.8 Cyg DG 14.0 BMM 139 E090508 226 x SC 203 TASS-V + CCDV Henden
20201112.7 Cyg FL 11.0 BMM 109-113 E070520 51 x SC 203 Tycho-2 + CCDV Henden
20201112.7 Del RX 10.9 BMM 108-112 E130330 51 x SC 203 ASAS-3(V) + CCDV APASS
20201112.7 Del SS <14.1 BMM 141 E150803 254 x SC 203 ASAS-3(V) + CCDV APASS
20201112.7 Her AE 12.2 BMM 120-125 E080805 127 x SC 203 ASAS-3(V) + CCDV Henden
20201112.7 Her DS 11.6 BMM 114-121 E080511 127 x SC 203 ASAS-3(V) + CCDV Henden
20201112.7 Her SV 13.3 BMM 129-134 E091017 156 x SC 203 ASAS-3(V) + CCDV Henden
20201112.8 Lac W 10.4 BMM 102-109 E071213 51 x SC 203 TASS-V + CCDV Henden
20201112.7 Lyr RX <14.2 BMM 142 E090210 226 x SC 203 TASS-V + CCDV Henden
20201112.7 Lyr RY <13.6 BMM 136 E090512 226 x SC 203 TASS-V + CCDV Henden
20201112.8 Peg TV <13.7 BMM 137 D120621 254 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Hello, just see this thread the first time. I got some questions:
What are BMM sequences? I only use AAVSO charts in visual and also with CCD camera.
What is CCDV Henden or CCDV APASS?
Regards Achim
 
Hi Achim,

BMM sequences or anything saying BMM is something that I made.
I am BMM = AAVSO initials of Marc Biesmans.
So I made the sequences using the very best photometry that is available.
And the sequences are also the very best.
Not like the AAVSO sequences, that are "political", in other words far from scientific.
Using comp. stars for "political reasons" because they are already used for a long time.
But many of those comp. stars are too red or too blue, or faint comp. stars very near bright stars,
or located too far away, or located straight below or above the variable, which just causes wrong
observations.
That is one of the reasons you see such enormous scatter in the AAVSO observations.

CCDV Henden and CCDV APASS is photometry using a V-filter, done by Arne Henden (ex director of
the AAVSO, photometry done at Flagstaff, AZ, USA).
CCDV APASS = photometry done by the APASS robotic system, also using a V-filter.

You can find the APASS CCDV photometry here : APASS: The AAVSO Photometric All-Sky Survey | aavso.org
You also will find more info and a description of the system there.

I worked for several years as a volunteer chartmaker for the AAVSO.

Best regards,
Marc
 
Hello Marc, thanks for your answer. I appreciate your own ref magnitudes. But I think in your way your data is lost for the rest of the world. Or do you also report in AAVSO V-ref-magnitudes?
Regards Achim
 
Hi Marc, if you like, let's compare your BMM charts with the AAVSO charts. Do you have charts for SN 2020uxz, BL LAC, QSO B0109+224 or 3C66A? These will be my next CCD targets. At the moment, I don't have an Astrodon V-filter (they are sold out since months), so the photometric magnitude will be CV.
Regards Achim
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 152 mm f/6 achromatic refractor on Astro-Physics AP 600E GTO mount (R 152)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Nov. 20, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201120.8 Cyg WY 8.3 BMM 83-87 C080523 16 x R 152 TASS V + CCDV Henden
20201120.8 Lyr W 10.3 BMM 100-104 D201117 56 x R 152 TASS-V + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 152 mm f/6 achromatic refractor on Astro-Physics AP 600E GTO mount (R 152)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Dec. 15, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201215.8 And RY <13.1 BMM 131 E181202 257 x R 152 CCDV APASS
20201215.8 And SX 10.2 BMM 101-105 C071211 23 x R 152 TASS-V + CCDV Henden
20201215.8 And TU 12.7 BMM 126-128 D201024 129 x R 152 CCDV APASS
20201215.8 And TX 11.9 BMM 115-121 E111118 69 x R 152 CCDV Henden
20201215.8 And UW <13.2 BMM 132 D091123 257 x R 152 TASS-V + CCDV Henden
20201215.9 Ari U 8.8 BMM 87-90 B111219 23 x R 152 ASAS-3(V) + CCDV Henden
20201215.9 Ori FG 10.7 BMM 105-108 E100213 28 x R 152 ASAS-3(V) + CCDV Henden
20201215.8 Peg SU 10.2 BMM 99-105 B201127 38 x R 152 TASS-V + CCDV APASS
20201215.9 Per AI 11.8 BMM 115-119 E040724 69 x R 152 TASS-V + CCDV Henden
20201215.8 Per RZ 10.6 BMM 104-108 E120119 38 x R 152 TASS-V + CCDV Henden
20201215.9 Per Y 8.9 BMM 88-91 B201017 23 x R 152 TASS-V + CCDV APASS
20201215.8 Psc W 12.7 BMM 125-129 D100318 129 x R 152 ASAS-3(V) + CCDV Henden
20201215.9 Tau AK 13.4 BMM 128-134 E120225 257 x R 152 CCDV APASS
20201215.9 Tau TZ 13.5 BMM 133-136 D190403 225 x R 152 CCDV APASS
20201215.9 Tau VX 10.8 BMM 104-109 D040107 38 x R 152 ASAS-3(V) + CCDV Henden
20201215.9 Tri R 11.5 BMM 113-117 C201109 69 x R 152 TASS-V + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 152 mm f/6 achromatic refractor on Astro-Physics AP 600E GTO mount (R 152)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Dec. 17/18, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201217.9 Aur AQ 12.3 BMM 122-126 E090326 100 x R 152 TASS-V + CCDV Henden
20201218.0 Aur AZ 10.8 BMM 105-109 E081211 38 x R 152 TASS-V + CCDV Henden
20201218.0 Aur ET 12.5 BMM 124 E131016 100 x R 152 CCDV APASS
20201218.0 Aur HT 11.6 BMM 112-118 D071216 56 x R 152 TASS-V + CCDV Henden
20201218.0 Aur SZ 12.7 BMM 125-128 E100225 129 x R 152 TASS-V + CCDV Henden
20201218.0 CMi WX 11.6 BMM 112-120 E081228 129 x R 152 ASAS-3(V) + CCDV Henden
20201218.0 Eri AR <12.7 BMM 127 E090105 180 x R 152 ASAS-3(V) + CCDV Henden
20201218.0 Gem BP <13.8 BMM 138 E071002 257 x R 152 ASAS-3(V) + CCDV Henden
20201218.0 Mon RS 12.9 BMM 127-132 E071122 180 x R 152 ASAS-3(V) + CCDV Henden
20201218.0 Ori BK 9.8 BMM 96-101 E070509 38 x R 152 ASAS-3(V) + CCDV Henden
20201218.0 Ori EU <13.5 BMM 135 E090202 257 x R 152 ASAS-3(V) + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: APM 140 mm f/7 ED douplet apo refractor on Astro-Physics AP600E GTO mount (R140)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Dec. 18/19, 2020

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20201218.9 Aur AA <13.8 BMM 138 E081214 245 x R 140 TASS-V + CCDV Henden
20201218.9 And UW <13.7 BMM 137 D091123 245 x R 140 TASS-V + CCDV Henden
20201218.9 Cnc ST <13.4 BMM 134 E100824 245 x R 140 ASAS-3(V) + CCDV Henden
20201218.9 Cnc SU <13.4 BMM 134 E120316 245 x R 140 ASAS-3(V) + CCDV APASS
20201219.0 Cnc TV <13.4 BMM 134 D180415 245 x R 140 ASAS-3(V) + CCDV APASS
20201218.9 Gem BC 12.7 BMM 124-127-129 E070827 140 x R 140 ASAS-3(V) + CCDV Henden
20201218.9 Gem BP <14.2 BMM 142 E071002 245 x R 140 ASAS-3(V) + CCDV Henden
20201218.9 Gem RT 12.6 BMM 123-127 D100311 140 x R 140 ASAS-3(V) + CCDV Henden
20201218.9 Gem XY 11.1 BMM 108-113 E131101 61 x R 140 CCDV APASS
20201218.9 Ori R 12.2 BMM 119-123 D201128 75 x R 140 ASAS-3(V) + CCDV APASS
20201218.9 Ori V 9.2 BMM 91-92-98 D110116 25 x R 140 ASAS-3(V) + CCDV Henden
20201218.9 Tau V 13.0 BMM 128-130-136 D120220 196 x R 140 ASAS-3(V) + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 120 mm f/7.5 ED doublet apo refractor on Vixen Super Polaris mount (R120)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Apr. 14-29, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20210414.9701 CrB R 6.3 BMM 61-65 A20090314 8 x B 40 Hipparcos

LPV

20210429.9 Boo R 9.1 BMM 90-92 A210429 23 x R 120 ASAS-3(V) + CCDV APASS
20210429.9 CrB S 12.8 BMM 126-131 D110501 100 x R 120 TASS-V + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 130 mm f/7 triplet apo refractor on Astro-Physics AP600E GTO mount (R130)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for May 06, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210506.9 CVn T 10.2 BMM 99-103 B210504 23 x R 130 TASS-V + CCDV APASS
20210506.9 Leo AO 12.7 BMM 126-130 D180413 130 x R 130 CCDV APASS
20210506.9 Leo S 11.6 BMM 113-118 D081229 101 x R 130 ASAS-3(V) + CCDV Henden
20210506.9 Leo TZ 10.7 BMM 106-110 D110111 38 x R 130 ASAS-3(V) + CCDV Henden
20210506.9 Leo W <13.1 BMM 131 D090228 182 x R 130 ASAS-3(V) + CCDV Henden
20210506.9 Vir R 12.1 BMM 119-123 C210426 57 x R 130 ASAS-3(V) + CCDV APASS
20210506.9 Vir RU 12.8 BMM 126-129 D180414 182 x R 130 ASAS-3(V) + CCDV APASS
20210506.9 Vir SU <13.3 BMM 133 D090205 182 x R 130 ASAS-3(V) + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 : 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP600E GTO mount (SC 203)
+ TS 70 mm f/6 triplet apo refractor (R 70)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for May 12/13, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210513.0 Boo RR 12.8 BMM 123-130 D210508 85 x SC 203 TASS-V + CCDV APASS
20210513.0 Boo RT 11.0 BMM 109-114 D110502 51 x SC 203 TASS-V + CCDV Henden
20210512.9 Boo Z 9.8 BMM 93-99 B120701 51 x SC 203 CCDV APASS
20210513.0 CrB S 12.2 BMM 120-123 D110501 51 x SC 203 TASS-V + CCDV Henden
20210513.0 CrB V 11.2 BMM 108-114 C110505 51 x SC 203 TASS-V + CCDV Henden
20210512.9 CVn U 10.0 BMM 98-103 B110503 18 x R 70 TASS-V + CCDV Henden
20210513.0 Ser S 13.5 BMM 134-140 D180502 226 x SC 203 ASAS-3(V) + CCDV APASS
20210513.0 Ser WW 12.2 BMM 121-124 D110402 85 x SC 203 ASAS-3(V) + CCDV Henden
20210513.0 Vir AP <13.6 BMM 136 D180412 156 x SC 203 ASAS-3(V) + CCDV APASS
20210513.0 Vir RS 12.8 BMM 127-129 D180418 127 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 150 f/7 triplet apo refractor on Astro-Physics AP Mach1 GTO mount (R 150)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for May 18/19, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210518.9 Boo R 9.9 BMM 95-100 A210429 26 x R 150 ASAS-3(V) + CCDV APASS
20210518.9 Boo Z 9.6 BMM 93-99 B120701 26 x R 150 CCDV APASS
20210519.0 Her AS 12.6 BMM 125-131 D120530 81 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her AZ <14.5 BMM 145 E040209 263 x R 150 TASS-V + CCDV Henden
20210519.0 Her BG <14.4 BMM 144 E120615 263 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her DF 11.9 BMM 117-121 E080818 81 x R 150 ASAS-3(V) + CCDV Henden
20210519.0 Her RS 11.3 BMM 111-114 D201005 44 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her SS 11.8 BMM 117-121 D180515 66 x R 150 CCDV APASS
20210519.0 Her SU 12.8 BMM 125-131 E120612 150 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her SV <14.0 BMM 140 E091017 210 x R 150 ASAS-3(V) + CCDV Henden
20210519.0 Her SY 8.1 BMM 79-82 B210503 19 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her VY 10.5 BMM 101-106 C120326 44 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Her XZ <13.9 BMM 139 E080805 263 x R 150 ASAS-3(V) + CCDV Henden
20210518.9 Her U 12.0 BMM 119-124 C210502 66 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Lyr TV 13.2 BMM 127-132-136 E150325 210 x R 150 CCDV APASS
20210519.0 Oph AY <13.7 BMM 137 E070522 210 x R 150 ASAS-3(V) + CCDV Henden
20210519.0 Oph RX <14.1 BMM 141 D130406 263 x R 150 ASAS-3(V) + CCDV APASS
20210519.0 Oph V970 <14.3 BMM 143 D130402 263 x R 150 ASAS-3(V) + CCDV APASS
20210518.9 Vir RU 13.5 BMM 132-138 D180414 263 x R 150 ASAS-3(V) + CCDV APASS
20210518.9 Vir SU 12.8 BMM 125-128-133 D090205 310 x R 150 ASAS-3(V) + CCD

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 150 f/7 triplet apo refractor on Astro-Physics AP Mach1 GTO mount (R 150)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for May 19/20, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210520.0 CrB S 11.7 BMM 116-120 D110501 44 x R 150 TASS-V + CCDV Henden
20210520.0 Her AE 10.1 BMM 98-102 C080805 26 x R 150 ASAS-3(V) + CCDV Henden
20210520.0 Her DS <14.0 BMM 140 E080511 263 x R 150 ASAS-3(V) + CCDV Henden
20210519.9 Leo AO 12.0 BMM 119 D180413 150 x R 150 CCDV APASS
20210520.0 Lyr RX <14.2 BMM 142 E090210 210 x R 150 TASS-V + CCDV Henden
20210520.0 Lyr RY 10.7 BMM 106-108 D181204 26 x R 150 TASS-V + CCDV APASS
20210520.0 Oph Z 9.8 BMM 95-100 A210517 26 x R 150 ASAS-3(V) + CCDV APASS
20210520.0 Ser WW 12.3 BMM 120-124 D110402 117 x R 150 ASAS-3(V) + CCDV Henden
20210520.0 Vir AP <13.6 BMM 136 D180412 210 x R 150 ASAS-3(V) + CCDV APASS
20210520.0 Vir RS 12.8 BMM 127-129 D180418 117 x R 150 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: APM 152 f/8 ED doublet apo refractor on Astro-Physics AP Mach1 GTO mount (R 152)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for May 29, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210529.0 Boo Z 9.4 BMM 93-99 B120701 30 x R 152 CCDV APASS
20210529.0 CrB S 11.2 BMM 111-116 D110501 50 x R 152 TASS-V + CCDV Henden
20210529.0 Her BG <14.4 BMM 144 E120615 300 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Her SU 12.9 BMM 125-131 E120612 133 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Her VY 10.2 BMM 101-106 C120326 30 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Oph RX <14.1 BMM 141 D130406 240 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Oph V970 <14.3 BMM 143 D130402 343 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Ser WW 12.8 BMM 127-131 D110402 171 x R 152 ASAS-3(V) + CCDV Henden
20210529.0 Vir AP <14.0 BMM 140 D180412 240 x R 152 ASAS-3(V) + CCDV APASS
20210529.0 Vir RS 13.0 BMM 129-133 D180418 171 x R 152 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: APM 152 f/8 ED doublet apo refractor on Astro-Physics AP Mach1 GTO mount (R 152)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for May 19/20, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210601.0 Aql LO <14.0 BMM 140 E181202 300 x R 152 ASAS-3(V) + CCDV APASS
20210601.0 Aql SY 11.6 BMM 113-117 E090906 133 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Cyg DG <14.3 BMM 143 E090508 300 x R 152 TASS-V + CCDV Henden
20210601.0 Cyg FL <14.2 BMM 142 E070520 300 x R 152 TASS-V + CCDV Henden
20210601.0 Cyg WY <14.0 BMM 140 E080523 300 x R 152 CCDV Henden
20210601.0 Del RX 11.7 BMM 112-119 E130330 92 x R 152 ASAS-3(V) + CCDV APASS
20210601.0 Del SS 14.0 BMM 140 E150803 300 x R 152 ASAS-3(V) + CCDV APASS
20210601.0 Her AE 9.6 BMM 94-98 C080805 30 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Her AZ <14.5 BMM 145 E040209 300 x R 152 TASS-V + CCDV Henden
20210531.9 Her DF 11.8 BMM 117-121 E080818 92 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Her DS 14.2 BMM 140 E080511 300 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Her SV <14.5 BMM 145 E091017 300 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Her XZ <14.5 BMM 145 E080805 300 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Lac W 13.6 BMM 133-138 E071213 300 x R 152 TASS-V + CCDV Henden
20210601.0 Lyr AN 11.9 BMM 117-119-125 E031130 50 x R 152 TASS-V + CCDV Henden
20210601.0 Lyr EL 12.7 BMM 123-128 E181201 171 x R 152 TASS-V + CCDV APASS
20210601.0 Lyr RX <14.2 BMM 142 E090210 300 x R 152 TASS-V + CCDV Henden
20210601.0 Lyr RY 11.7 BMM 114-120 D181204 50 x R 152 TASS-V + CCDV APASS
20210601.0 Lyr TV 13.9 BMM 136-141 E150325 300 x R 152 CCDV APASS
20210601.0 Oph AY <14.1 BMM 141 E070522 300 x R 152 ASAS-3(V) + CCDV Henden
20210601.0 Oph RY 11.2 BMM 111-117 E180427 75 x R 152 ASAS-3(V) + CCDV APASS
20210601.0 Sge W 13.7 BMM 132-140 E130612 240 x R 152 CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT : 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ TS 70 mm f/6 triplet apo refractor (R 70)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for June 01/02, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210602.0 Cyg AU 11.7 BMM 114-118 E181213 85 x SC 203 TASS-V + CCDV APASS
20210602.0 Cyg DW 11.8 BMM 115-120 E080511 85 x SC 203 ASAS-3(V) + CCDV Henden
20210602.0 Cyg SX 12.6 BMM 123-127 E120327 85 x SC 203 TASS-V + CCDV Henden
20210602.0 Cyg V 12.3 BMM 122-124 D201122 85 x SC 203 TASS-V + CCDV APASS
20210602.0 Del ES 12.5 BMM 123-127 E160514 127 x SC 203 ASAS-3(V) + CCDV APASS
20210601.9 Her AS 13.3 BMM 131-134 D120530 127 x SC 203 ASAS-3(V) + CCDV APASS
20210601.9 Her RS 10.3 BMM 102-104 D201005 37 x SC 203 ASAS-3(V) + CCDV APASS
20210601.9 Her SS 13.3 BMM 132-135 D180515 127 x SC 203 CCDV APASS
20210601.9 Her SY 8.9 BMM 88-93 B210503 18 x R 70 ASAS-3(V) + CCDV APASS
20210601.9 Lyr AB 10.9 BMM 107-110 E181206 51 x SC 203 CCDV APASS
20210602.0 Lyr RS 12.2 BMM 119-123 E181208 85 x SC 203 TASS-V + CCDV APASS
20210601.9 Lyr RW <14.3 BMM 143 E071125 226 x SC 203 TASS-V + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: TS 120 mm f/7.5 ED doublet apo refractor on Vixen Super Polaris mount (R120)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

All charts and sequences: BMM

Visual observations for Aug. 16, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210816.9 Her AE <13.2 BMM 132 E080805 225 x R 120 ASAS-3(V) + CCDV Henden
20210816.9 Her SV 10.6 BMM 104-109 E091017 100 x R 120 ASAS-3(V) + CCDV Henden
20210816.9 Lyr RX <13.4 BMM 134 E090210 225 x R 120 TASS-V + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT : 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ TS 70 mm f/6 triplet apo refractor (R 70)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for Sept. 05, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210905.9 Aql SY 11.1 BMM 108-113 E090906 85 x SC 203 ASAS-3(V) + CCDV Henden
20210905.9 Aql TV <14.0 BMM 140 E080510 226 x SC 203 ASAS-3(V) + CCDV Henden
20210905.9 Cyg DG 11.8 BMM 116-120 E090508 85 x SC 203 TASS-V + CCDV Henden
20210905.9 Del SS 12.9 BMM 127-130 E150803 127 x SC 203 ASAS-3(V) + CCDV APASS
20210905.8 Her AE <14.2 BMM 142 E080805 226 x SC 203 ASAS-3(V) + CCDV Henden
20210905.8 Her SV 10.3 BMM 101-104 E091017 37 x SC 203 ASAS-3(V) + CCDV Henden
20210905.8 Her VY 13.7 BMM 133-140 E120326 156 x SC 203 ASAS-3(V) + CCDV APASS
20210905.9 Lyr RX <14.2 BMM 142 E090210 226 x SC 203 TASS-V + CCDV Henden
20210905.9 Lyr RY <14.8 BMM 148 E181204 226 x SC 203 TASS-V + CCDV APASS
20210905.8 Oph V970 12.1 BMM 119-122 D130402 85 x SC 203 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT : 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ TS 70 mm f/6 triplet apo refractor (R 70)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for Sep. 07/08, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210908.0 And SX 9.7 BMM 95-98 E071211 37 x SC 203 TASS-V + CCDV Henden
20210908.0 And UW 12.9 BMM 127-131 E091123 85 x SC 203 TASS-V + CCDV Henden
20210907.9 Aql LO 13.7 BMM 135-138 E181202 226 x SC 203 ASAS-3(V) + CCDV APASS
20210907.9 Cyg FL 11.9 BMM 113-118-122 E070520 85 x SC 203 TASS-V + CCDV Henden
20210908.0 Cyg WY 10.2 BMM 98-104 C080523 37 x SC 203 CCDV Henden
20210907.9 Del RX <14.1 BMM 141 E130330 254 x SC 203 ASAS-3(V) + CCDV APASS
20210908.0 Lac W 9.9 BMM 95-102 E071213 37 x SC 203 TASS-V + CCDV Henden
20210907.9 Lyr AN <14.0 BMM 140 E031130 226 x SC 203 TASS-V + CCDV Henden
20210907.9 Lyr EL 11.8 BMM 116-119 E181201 85 x SC 203 TASS-V + CCDV APASS
20210908.0 Peg DL 10.3 BMM 101-104 D080704 37 x SC 203 ASAS-3(V) + CCDV Henden
20210908.0 Peg SS 13.6 BMM 135-137 D111208 156 x SC 203 ASAS-3(V) + CCDV Henden
20210907.9 Peg TV <14.2 BMM 142 E120621 254 x SC 203 ASAS-3(V) + CCDV APASS
20210908.0 Per AI 13.4 BMM 129-134-137 E040724 156 x SC 203 TASS-V + CCDV Henden
20210908.0 Psc W 11.7 BMM 116-120 D100318 51 x SC 203 ASAS-3(V) + CCDV Henden

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: Celestron C8 XLT : 203 mm f/10 Schmidt-Cassegrain on Astro-Physics AP Mach 1 GTO mount (SC 203)
+ TS 70 mm f/6 triplet apo refractor (R 70)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for Sep. 08, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210908.9 Cyg DW <14.0 BMM 140 E080511 226 x SC 203 ASAS-3(V) + CCDV Henden
20210908.9 Del ES 10.9 BMM 107-109-112 C160514 51 x SC 203 ASAS-3(V) + CCDV APASS
20210908.9 Del RU 10.8 BMM 105-110 E181201 51 x SC 203 ASAS-3(V) + CCDV Henden
20210908.8 Her AZ 13.9 BMM 137-141 E040209 226 x SC 203 TASS-V + CCDV Henden
20210908.8 Her DF 11.4 BMM 111-117 E080818 51 x SC 203 ASAS-3(V) + CCDV Henden
20210908.8 Her DS 12.9 BMM 125-131 E080511 156 x SC 203 ASAS-3(V) + CCDV Henden
20210908.8 Her XZ 11.3 BMM 110-114 E080805 51 x SC 203 ASAS-3(V) + CCDV Henden
20210908.8 Lyr RW <14.3 BMM 143 E071125 226 x SC 203 TASS-V + CCDV Henden
20210908.8 Lyr TV <14.4 BMM 144 E150325 226 x SC 203 CCDV APASS
20210908.9 Peg AN <13.6 BMM 136 E130516 254 x SC 203 ASAS-3(V) + CCDV APASS
20210908.9 Peg AP <13.9 BMM 139 E130710 226 x SC 203 ASAS-3(V) + CCDV APASS
20210908.8 Sge W 9.6 BMM 94-97 D130612 32 x R 70 ASAS-3(V) + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Essen, Belgium
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: APM-LZOS 123 f/6 triplet apo refractor on Astro-Physics AP Mach 1 GTO mount (R 123)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for Sept. 13, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

LPV

20210913.8 Her AE <13.4 BMM 134 E080805 185 x R 123 ASAS-3(V) + CCDV Henden
20210913.8 Her SV 10.5 BMM 104-109 E091017 46 x R 123 ASAS-3(V) + CCDV Henden
20210913.8 Her VY <13.3 BMM 133 E120326 185 x R 123 ASAS-3(V) + CCDV APASS
20210913.9 Lyr RX <13.4 BMM 134 E090210 185 x R 123 TASS-V + CCDV Henden
20210913.8 Lyr RY <13.0 BMM 130 E181204 185 x R 123 TASS-V + CCDV APASS

Regards,
Marc
 
Observer: Marc Biesmans, Villeveyrac (dept. Herault), France
Initials: BMM
Internet: marcbiesmans@yahoo.com

Instruments: APM-LZOS 123 f/6 triplet apo refractor on Astro-Physics AP 600E GTO mount (R 123)
+ 6 x 30 mm, 8 x 40 mm, 8 x 56 mm, 10 x 60 mm and 15 x 70 mm binoculars (B30, B40, B56, B60 and B70)

Charts and sequences: BMM

Visual observations for Oct. 10, 2021

All times: UT

Date(UT) Star Magn. Comp.stars Chart info Power Aperture Seq. photometry

CV

20211010.7958 CrB R 6.0 BMM 57-61 A20090314 8 x B 40 Hipparcos

LPV

20211010.8 Del SS <14.1 BMM 141 E150803 185 x R 123 ASAS-3(V) + CCDV Henden
20211010.8 Lyr RX 13.7 BMM 134-137-140 E090210 148 x R 123 TASS-V + CCDV Henden

Regards,
Marc
 
Oben