[vsnet-alert 3628] Possible outburst of nova in 1914

[Seiichi Yoshida <seiichi@muraoka.info.waseda.ac.jp>]

Dear colleagues,

I am Seiichi Yoshida, working on the MISAO Project.

We discovered a new variable star very near by V949 Sgr, a nova in
1914. Maybe it is the outburst of a recurrent nova, or maybe the nova
in 1914 was just a red variable star. Further observations are
encouraged.

The star is named MisV0508. It is at R.A.=18h41m03s.10,
Decl.=-28o09'35".6 (2000.0) and identified with GSC6870.1383 =
USNO-A2.0_0600.36532866 = IRAS 18379-2812. It was detected by the PIXY
system as one of the candidates of new variable stars from unfiltered
CCD images taken by KenIchi Kadota, Ageo City, Saitama, Japan, with
0.16-m f/3.3 reflector, then confirmed by Seiichi Yoshida as a real
new variable star. It was 11.5 mag on July 15.59 and 13.3 mag on
Sept. 23.44 (UT). The magnitude is based on a preliminary V magnitude
calculated from R and B magnitude in the USNO-A1.0 based on Taichi
Kato's equation:
  V = R + 0.375 (B - R)

And we found that this object and V949 Sgr, a nova in 1914, are at the
same position within 12 arcsec.

The finding chart is available at:

  http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/misao/data/MisV/MisV0508.gif

Best regards,

--
Seiichi Yoshida
seiichi@muraoka.info.waseda.ac.jp
http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/index.html

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