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Hi All,
I've now sorted out some colour corrections for my
system. So I can now offer some more reliable measures of V4742 Sgr and the red
star in the same field.
Date
V 4742
Sgr
6846
6 Star
to East
2002 Sep
23 10.110
1.381
11.807 2.148
10.703
0.722
2002 Oct 10
11.184 1.435
11.384
2.044
10.729 0.747
2002 Oct 14
11.531 1.548
11.377
2.077
10.765 0.765
2002 Oct 17
11.580 1.457
11.328
2.041 10.723 0.740
2002 Oct 19
11.611 1.438
11.349
2.053
10.732 0.745
These are V and V-R. The star to the east is about
10-20" away and is the one mentioned by Brian Skiff. I would not rely too much
on the colours as the extrapolation is large. This also affects the derived
magnitudes in V. But there seems to be definite variabity in 6846 6 and the nova
shows some interesting colour changes. All measures are based on at least three
images and as many as six in V and R filters. All UT's are ~0800.
Regards,
Stan
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