AAVSO: Special Notice #22

Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports
(Central Bureau Electronic Telegram 711) that S. Nakano, Sumoto, Japan,
reports the discovery of a brightening star in Cassiopeia by Akihiko Tago,
Ayabe, Tsuyama, Okayama-ken, Japan. Unfiltered CCD observations by Tago
include October 25.538 UT, 10.7; 27.409, 10.5; 30.411, 8.8; 31.469, 7.5.
Tago used a 70-mm f/3.2 lens and a Canon EOS 20Da digital camera (limiting
magnitude 12).

Tago adds that a star of magnitude 11.8, which did not show variability in
his earlier images and which he identifies as GSC 3656-1328, is located very
close to the new object's position of:

R.A. = 00h 09m 21.81s,  Decl. = +54o 39' 43.8"  (2000.0)

According to Green, apparently the GSC star is the same as listed in the
USNO-A2 catalogue as 1425.00229853, having position end figures 22.00s, 44.0"
and blue and red magnitudes 11.9 and 11.3, respectively.

A search at AAVSO of SIMBAD, the GCVS+NameLists, and VSX showed nothing
variable close to the position of the new object.

Visual, PEP, and CCD coverage is requested; photometric observers should
use a V filter if possible.

The position of the object lies within the field of the 'a' scale AAVSO
chart for R Cas. The comparison star magnitudes on this chart go to 7.5,
so they may be used while the object is so bright. The chart is at:

http://www.aavso.org/cgi-bin/searchcharts3.pl?name=r%20cas

Please report observations to the AAVSO as: 0004+54B  VAR CAS 06. Also, be
sure to indicate what chart/comparison star(s) you used.

Congratulations to Akihiko Tago on his latest discovery!

This special notice was compiled by: Elizabeth O. Waagen
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