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[vsnet-obs 5601] April 22, 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:

0940+45      DV UMA     2450558.3430   1997-04-19   0.8430      16.37,
eclipse timing
0940+45      DV UMA     2450558.4284   1997-04-19   0.9284      <16.0,
eclipse timing
0940+45      DV UMA     2450558.4298   1997-04-19   0.9298      <16.0
Still superhumps ! Very interesting star.

1841+37      AY LYR     2450557.5388   1997-04-19   0.0388      12.57
1841+37      AY LYR     2450558.5333   1997-04-20   0.0333      12.69
Superhumps with amplitude 0.1 mag and period about 0.075 day clearly
visible.

1048+30      SX LMI     2450558.3166   1997-04-19   0.8166      15.9
1556+33      VAR21 CRB  2450558.4895   1997-04-19   0.9895      <17.2
1621+39      VAR43 HER  2450558.4902   1997-04-19   0.9902      <16.5

Regards 

Lasse Teist Jensen (JLT)