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[vsnet-obs 6924] BL Lac Obs Aug 18/19 (Tonny Vanmunster)



Hi,

Some further unfiltered CCD photometry of BL Lac,
obtained last night at CBA Belgium Observatory.

Regards,
Tonny Vanmunster


------------------------------------------------------
PHOTOMETRIC CCD OBSERVATIONS OF BL Lac
------------------------------------------------------
CENTER FOR BACKYARD ASTROPHYSICS  (CBA) BELGIUM
Observer   :    Tonny Vanmunster, Landen, Belgium
                Internet: tvanmuns@innet.be
Instruments:    0.25-m f/6.3 SCT , ST-7 SBIG CCD
                unfiltered exposures (50s)
Differential magnitudes
------------------------------------------------------

Observations for August 18/19, 1997 [hazy sky; strong moonlight]

Comp Star = GSC 3206 1047 mag 12.8 approx 25" E of variable

JD          diff. mag.
--------    ----------
679.3526    0.98
679.3535    0.94
679.3554    0.95
679.3563    0.98
679.3572    1.06
679.3582    0.94
679.3591    1.01
679.3609    1.05
679.3619    1.02
679.3628    1.00
679.3637    1.00
679.3647    0.99
679.3665    1.04
679.3674    0.99
679.3683    1.01
679.3693    1.02
679.3702    0.98
679.3711    1.00
679.3730    1.00
679.3739    1.01
679.3748    0.96
679.3758    0.97
679.3776    1.00
679.3785    1.01
679.3795    1.02
679.3804    1.01
679.3813    1.00
679.3822    1.04
679.3831    1.05
679.3841    1.05
679.3850    1.07
679.3859    1.06
679.3869    1.07
679.3878    1.01
679.3887    1.00
679.3896    1.01
679.3906    1.03
679.3915    1.12
679.3924    1.07
679.3933    1.01
679.3943    1.05
679.3952    1.05
679.3961    1.10
679.3970    1.03
679.3980    1.04
679.3989    1.03
679.3998    1.01
679.4007    1.05
679.4017    1.09
679.4026    1.02
679.4035    0.98
679.4054    0.99
679.4063    1.02
679.4072    1.02
679.4081    0.98
679.4091    1.00
679.4109    0.94
679.4119    0.94
679.4128    0.95
679.4137    0.92
679.4146    0.95
679.4156    0.96
679.4165    1.00
679.4174    1.00
679.4184    0.99
679.4193    0.94
679.4202    0.99
679.4211    0.95
679.4220    0.93
679.4230    0.96
679.4239    0.95
679.4248    0.97
679.4258    0.95
679.4276    0.89
679.4285    0.97
679.4304    0.92
679.4313    0.93
679.4331    0.89
679.4341    0.91
679.4350    0.94
679.4359    0.91
679.4368    0.87
679.4377    0.89
679.4387    0.89
679.4405    0.91
679.4414    0.90
679.4424    0.92
679.4433    0.87
679.4442    0.89
679.4452    0.89
679.4461    0.89
679.4470    0.90
679.4479    0.88
679.4498    0.90
679.4507    0.85
679.4517    0.86
679.4526    0.90
679.4535    0.88
679.4544    0.88
679.4554    0.91
679.4563    0.89
679.4572    0.90
679.4581    0.88
679.4591    0.84
679.4609    0.85
679.4618    0.82
679.4637    0.83
679.4646    0.81
679.4665    0.83
679.4674    0.82
679.4683    0.79
679.4692    0.86
679.4702    0.85
679.4720    0.88
679.4729    0.85
679.4739    0.88
679.4748    0.88
679.4757    0.85
679.4766    0.92
679.4776    0.87
679.4785    0.83
679.4794    0.87
679.4803    0.85
679.4813    0.86
679.4832    0.87
679.4841    0.86
679.4850    0.84
679.4859    0.86
679.4868    0.86
679.4887    0.86
679.4896    0.89
679.4905    0.94
679.4914    0.95
679.4924    0.90
679.4942    0.90
679.4951    0.90
679.4961    0.94
679.4970    0.91
679.4979    0.88
679.4988    0.86
679.4998    0.89
679.5007    0.90
679.5016    0.94
679.5025    0.93
679.5035    0.95
679.5044    0.94
679.5053    0.93
679.5063    0.96
679.5072    0.95
679.5081    0.96
679.5090    0.88
679.5100    0.93
679.5109    0.94
679.5118    0.96
679.5127    0.98
679.5137    0.93
679.5146    0.98
679.5155    0.99
679.5164    0.99
679.5174    0.99
679.5183    0.98
679.5192    0.98
679.5201    0.93
679.5220    0.95
679.5229    0.99
679.5238    0.94
679.5248    0.99
679.5257    0.99
679.5276    1.02
679.5285    0.99
679.5294    1.00
679.5303    1.04
679.5313    1.05
679.5331    1.02
679.5340    1.05
679.5350    1.07
679.5359    1.07
679.5368    1.03
679.5377    1.06
679.5386    1.10
679.5396    1.06
679.5405    1.03
679.5414    1.07
679.5423    1.07
679.5433    1.09
679.5442    1.06
679.5452    1.04
679.5461    1.11
679.5470    1.09
679.5488    1.08
679.5498    1.05
679.5507    1.11
679.5516    1.08
679.5525    1.06
679.5534    1.10
679.5544    1.08
679.5553    1.11
679.5562    1.14
679.5572    1.12
679.5581    1.11
679.5590    1.12
679.5599    1.10
679.5609    1.10
679.5618    1.13
679.5627    1.12
679.5636    1.09
679.5646    1.11
679.5655    1.11
679.5664    1.11
679.5674    1.08
679.5683    1.12
679.5692    1.11
679.5702    1.14
679.5710    1.15
679.5720    1.16
679.5729    1.12
679.5738    1.14
679.5747    1.13
679.5757    1.15
679.5766    1.13
679.5775    1.12
679.5784    1.17
679.5794    1.15
679.5803    1.11
679.5822    1.15
679.5831    1.17
679.5840    1.17
679.5850    1.15
679.5859    1.15
679.5868    1.16
679.5877    1.18
679.5886    1.22
679.5896    1.18
679.5905    1.21
679.5914    1.19
679.5923    1.21
679.5933    1.20
679.5942    1.18
679.5951    1.20
679.5960    1.17
679.5970    1.14
679.5979    1.18
679.5988    1.22
679.5997    1.17
679.6007    1.15
679.6016    1.20
679.6025    1.15
679.6035    1.21
679.6044    1.18
679.6053    1.19
679.6062    1.12
679.6072    1.13
679.6081    1.15
679.6090    1.20
679.6099    1.16
679.6108    1.15
679.6118    1.16
679.6127    1.19
679.6136    1.20
679.6145    1.13
679.6155    1.13
679.6164    1.16
679.6173    1.20
679.6182    1.18
679.6192    1.15
679.6201    1.20
679.6210    1.16
679.6220    1.24
679.6229    1.19
679.6238    1.23
679.6247    1.19
679.6266    1.18
679.6275    1.20
679.6284    1.18
679.6294    1.22
679.6303    1.21
679.6312    1.23
679.6321    1.26
679.6331    1.25
679.6340    1.24
679.6349    1.17
679.6358    1.21
679.6368    1.17
679.6386    1.19
679.6395    1.23
679.6405    1.19
679.6414    1.14
679.6423    1.24
679.6432    1.17
679.6442    1.17
679.6451    1.19
679.6460    1.18
679.6469    1.18
679.6479    1.21

EOF

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