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[vsnet-obs 5776] Var 21 CrB superhumps, CCD, JLT



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PHOTOMETRIC CCD OBSERVATIONS OF VARIABLE STARS
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CENTER FOR BACKYARD ASTROPHYSICS  (CBA) DENMARK
Observer   :  Lasse Teist Jensen
Address     : Suhrs Alle 5, DK - 3520 Farum , Denmark
E-mail        : ltj@tt.dk
CBA Denmark Page: http://vsnet.astro.columbia.edu/~cba/dk
Instruments:  0.25-m f/6.3 SCT , ST-6 SBIG CCD

Dear Colleagues,

Selected CCD results:

1556+33      VAR21 CRB  2450581.4541   1997-05-12   0.9541      14.05,
superhump maximum
1556+33      VAR21 CRB  2450581.5284   1997-05-13   0.0284      14.15,
superhump maximum
Despite the unstable weather during the time series the light curve
clearly show superhumps.
The amplitude is about 0.3 mag.

The night May 13-14 I got a new time series on Var21 CrB. The data not
reduced yet.

1621+39      VAR43 HER  2450581.4680   1997-05-12   0.9680      <15.5

Regards 

Lasse Teist Jensen (JLT)