[vsnet-obs 61387] 2008 Apr. 17-18 [GRL, NAS.VSS]

[Bjorn H. Granslo]

Norwegian Astronomical Society - Variable Star Section.

Observations from 2008 April 17-18 [JD 2454574].

Observer: Bjorn H. Granslo [GRL].
Location: Fjellhamar, Norway.
Instrument: 203-mm f/10 SCT [C203], naked eye [NE].
Observations: Visual, Pogson step estimates.
Report identification: grl_2008_04d.vis.

Variable     YYYYMMDD(UT)  Magn  Obs  Instrum.  Sequence Estimates
CAMZ         20080418.078  11.9  GRL  C203;100x NAS.VSS  K=V;L+6 [2]
CRBT         20080418.080  10.4  GRL  C203;100x NAS.VSS  U-7;X+2 [1]
CYGSS        20080418.077  11.9  GRL  C203;100x NAS.VSS  K=V;L+4 [2]
CYGV2468     20080418.081  11.6  GRL  C203;100x NAS.VSS  S-5;T=V [1]
CYGV2491     20080418.083   9.7  GRL  C203;100x NAS.VSS  H-1;K+4 [1]
DRAAG        20080418.072  10.0  GRL  C203;100x NAS.VSS  G-2;H+4 [1]
OPHRS        20080418.076  11.9  GRL  C203;100x NAS.VSS  S-4;T+2 [2]
SCOdelta     20080418.084   2.1  GRL  NE        GCPD-V   E+1 [2]

* V2468 Cygni (Nova Cyg 2008 No. 1) comparison stars (V magnitudes
   from TASS-4): S = 11.11; T = 11.64. Sequence version 2008 Mar. 11.
* V2491 Cygni (Nova Cyg 2008 No. 2) comparison stars (V-magnitudes
   from TYC-2 w/Bessell and TASS-4): H = 9.56; K = 10.15. Ver. Apr. 14.
* Delta Scorpii: Comparison star (V magnitude from GCPD), E = 2.50
   (Beta Sco AB, combined magnitude of double star); observed at alt.
   7 1/2 deg. (max.); deduced magnitude corrected for extinction by
   using an extinction coefficient of 0.20 mag. per airmass.