Hei!
Vedlegger undertegnedes visuelle observasjoner fra juli 2007.
Merk det store lysfallet til R Coronae Borealis (CRBR i
VSNET-format). Det ble også noen lysstyrkevurderinger av den
seneste novaen i Skytten (SGRV5558).

Med vennlig hilsen
Bjørn H. Granslo

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---------- Forwarded message ----------
Date: Fri, 3 Aug 2007 00:33:48 +0200 (MET DST)
From: Bjorn H. Granslo <b.h.granslo@...>
To: vsnet-obs@...
Subject: [vsnet-obs 58743] 2007 July, GRL

Norwegian Astronomical Society - Variable Star Section

Observations from 2007 Jul 01 UT to 2007 Jul 31 UT

Observer: Bjorn H. Granslo [GRL]
Location: Fjellhamar, Norway.
Observations: Visual, Pogson step estimates.
Report identification: grl_2007_07.vis

Variable YYYYMMDD(UT) Magn Obs Instrum. Mag.ref Estimates
CASrho 20070716.00 4.7 GRL B7x50 NAS.VSS B-5;G+6 [2]
CASrho 20070728.93 4.8 GRL B7x50 NAS.VSS B-6;D=V;G+6 [1]
CRBR 20070712.97 6.4 GRL B7x50 NAS.VSS B-6;C+1 [2]
CRBR 20070715.00 6.8 GRL L70;20x NAS.VSS C-3;E+6 [2]
CRBR 20070720.95 7.0 GRL L100;25x NAS.VSS C-5;E+5 [1]
CRBR 20070725.95 7.5 GRL L100;25x NAS.VSS E=V;F+6 [1]
CRBR 20070728.93 8.1 GRL L100;25x NAS.VSS E-6;F=V [1]
CRBR 20070730.050 8.6 GRL L100;25x NAS.VSS F-5;H+5 [2]
CRBR 20070731.949 9.3 GRL L100;25x NAS.VSS H-2;J+2 [1]
CRBT 20070728.94 10.2 GRL C203;100x NAS.VSS U-4;X+4 [1]
CYGSS 20070720.98 12.2 GRL C203;100x NAS.VSS K-3;L=V [2]
CYGSS 20070728.94 12.0 GRL C203;100x NAS.VSS K-1;L+3 [2]
CYGSS 20070731.99 12.0 GRL C203;100x NAS.VSS K-1;L+3 [2]
CYGW 20070728.95 6.7 GRL B7x50 NAS.VSS D-5;E+1 [1]
OPHRS 20070728.94 11.2 GRL C203;100x NAS.VSS R-3;S+3 [2]
SCTR 20070712.96 5.8 GRL B7x50 NAS.VSS E-4;S+4 [2]
SCTR 20070715.00 5.9 GRL B7x50 NAS.VSS E-5;S+3 [2]
SCTR 20070720.95 6.4 GRL L100;25x NAS.VSS S-2;G=V [2]
SCTR 20070725.95 6.7 GRL L100;25x NAS.VSS G-2;H=4 [1]
SCTR 20070728.93 6.4 GRL B7x50 NAS.VSS S-2;G+1 [1]
SGRV5558 20070715.967 8.1 GRL L70;32x NAS.VSS E-4;F+2 [2]
SGRV5558 20070720.944 8.6 GRL L100;25x NAS.VSS F-3;H+6 [2]
SGRV5558 20070728.924 8.3 GRL L100;25x NAS.VSS E-6;F=V [2]
SGRV5558 20070731.957 8.8 GRL L100;25x NAS.VSS F-5;H+5 [2]

R CrB comparison stars (V-mags. from GCPD and TASS):
B = 5.78 [upsilon CrB]; C = 6.47 [HR 5813]; E = 7.44 [HD 141352];
F = 8.06 [HD 140913]; H = 9.06 [HD 141769]; J = 9.54 [HD 142210].

V5558 Sgr comparison stars (V-mags. from TYC2 w/Bessell):
E = 7.65 [HD 166052]; F = 8.27 [HD 165854]; F = 9.22 [HD 166322].
V5558 Sgr (Nova 2007): R.A = 18h10m18s, Decl. = -18o46'.9 (2000).