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[vsnet-obs 5185] CCD Result, 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:

0837+28      EG CNC     2450495.4000   1997-02-15   0.9000      <16.5
0956+34      RU LMI     2450495.4090   1997-02-15   0.9090      <16.8
0945+34      RZ LMI     2450495.4076   1997-02-15   0.9076      14.60

0716+28      AW GEM     2450499.3034   1997-02-19   0.8034      <16.5
0837+28      EG CNC     2450499.2923   1997-02-19   0.7923      <16.0
0109+37      FO AND     2450499.2840   1997-02-19   0.7840      <16.3
0749+22      U GEM      2450499.2999   1997-02-19   0.7999      10.2
0632+18      UV GEM     2450499.3013   1997-02-19   0.8013      <15.0

1133+03      T LEO      2450501.4819   1997-02-21   0.9819      11.54
0837+28      EG CNC     2450501.4652   1997-02-21   0.9652      <16.0
1556+33      VAR21 CRB  2450501.5145   1997-02-22   0.0145      <16.5
1621+39      VAR43 HER  2450501.5215   1997-02-22   0.0215      <17.0

1027+59      DW UMA     2450506.2909   1997-02-26   0.7909      15.80,
eclipse timing
1027+59      DW UMA     2450506.4277   1997-02-26   0.9277      15.41,
eclipse timing

1133+03      T LEO      2450506.5125   1997-02-27   0.0125      10.37,
max of superhump
1133+03      T LEO      2450506.5729   1997-02-27   0.0729      10.35,
max of superhump
Superhumps cleary visible in T Leo timeseries. Period about 85-90
minutes. Amplitude 0.1 mag.
The amplitude of the second hump a bit larger than the first.

0837+28      EG CNC     2450506.4618   1997-02-26   0.9618      <16.5
1251+27      GO COM     2450506.6479   1997-02-27   0.1479      <16.0
1904+43      MV LYR     2450506.6569   1997-02-27   0.1569      14.00,
bright
1631+12      PG1633+115 2450506.6993   1997-02-27   0.1993      15.15
1804+38      PR HER     2450506.6756   1997-02-27   0.1756      <17.0
1958+56      V1028 CYG  2450506.6840   1997-02-27   0.1840      <17.3
2103+36      V1060 CYG  2450506.6875   1997-02-27   0.1875      <17.0
1920+28      V1114 CYG  2450506.6909   1997-02-27   0.1909      <16.5
1925+42      V1504 CYG  2450506.6826   1997-02-27   0.1826      16.8,
beginning of outburst
1841+43      V344 LYR   2450506.6659   1997-02-27   0.1659      15.45,
outburst
1905+42      V363 LYR   2450506.6645   1997-02-27   0.1645      16.20
1817+38      V391 LYR   2450506.6611   1997-02-27   0.1611      16.4
1858+42      V493 LYR   2450506.6597   1997-02-27   0.1597      <17.2
1947+58      V542 CYG   2450506.6861   1997-02-27   0.1861      <17.0
1626+21      V592 HER   2450506.6715   1997-02-27   0.1715      <16.5
1930+31      V795 CYG   2450506.6812   1997-02-27   0.1812      <17.0
1556+33      VAR21 CRB  2450506.6381   1997-02-27   0.1381      <17.2
1759+05      VAR25 OPH  2450506.6965   1997-02-27   0.1965      <17.7
1621+39      VAR43 HER  2450506.6430   1997-02-27   0.1430      <17.0

Regards 

Lasse Teist Jensen (JLT)