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THE ASTRONOMER Charts Sequence Notes    No 0122 2006 Aug 04 16.15UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                         http://www.theastronomer.org
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V2362 CYGNI
The current AAVSO chart (060406) for this 2006 nova only shows 
comparison stars down to magnitude 11.6 whereas the variable is 
currently at approximately magnitude 12 and seriously under-observed, 
despite being well-placed for observation.

Richard Miles and David Boyd have kindly submitted measures allowing the 
TA/BAAVSS sequence to be extended to magnitude V=13.13. Richard adds 
that V data is based on a total of 13,120 seconds of integration (430 
frames).

During the preparation of the E-chart for TA, the editor noticed there 
are a number of stars of magnitude 11-12 missing across the nova's field 
from the GSC first version and many other stars have quite large 
magnitude differences against the AAVSO chart although it appears to be 
the GSC which has large errors in the field. This may have been 
corrected in revisions including that currently used by Guide 8.0.

An e-chart will follow in the next CSN for those using FINDERS but the 
graphical chart should appear on the GOLD section of our WWW site 
shortly.

For comparison with the AAVSO chart the following table has been 
prepared of changes in magnitude:

AAVSO      TA/BAAVSS
101        10.15
108        10.90
113        11.27
116        11.63

Guy M Hurst