[vsnet-chat 5497] Re: [AAVSO-DIS] LS Peg

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

Re: [AAVSO-DIS] LS Peg

> Just done a chart for LS Peg. GCVS gives the type as UG, range about 
> 11-13 but this looks too small for a regular UG star, so it's my guess 
> it's something else. Most of the references I've found are inaccessible 
> to non-subscribers of the journals concerned. Is there any 'back door' 
> to access these publications via the AAVSO? LS Peg is visible in the 
> Vehrenberg atlas at about magnitude 11pg. Anyone have any info about 
> this object?

   Some people may remember that this star was selected as a Stephenson
emission line object (S193), which was classified as a CV.  From this
time, the VSOLJ (Variable Star Observers League in Japan) started monitoring
the object from the 1980's.  Although there has always been some
fluctuations, this star did not show dwarf nova-like outbursts.
Stephenson noticed the presence of NSV 13903, which was originally classified
as a Mira, in the close vicinity of "S193", but the identity was questioned
at that time.  After examining the original discovery literature of NSV 13903,
the identity was confirmed.  The GCVS "UG" classification and variability
range may have been somehow affected by the original Mira classification.
The star possibly experienced some large-amplitude variation in the past
which is not recently seen.

Regards,
Taichi Kato

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp