PNV in Scorpius

Nucleo de Estudo e Observacao Astronomica - Jose Brazilicio de Souza (Florianopolis, Brazil) (NEOA-JBS)
Mon, 09/30/2013 - 14:16

PNV J17411305-3413235

According to TOCP website, Koichi Nishiyama and Fujio Kabashima report a discovery of possible nova (mag.= 11.1) in Scorpius.
More information is available at:


Possible LPV?

This is still worth pursuing, but VizieR shows the existence of an IR source within 2 arcseconds of this position, and a star with spectral type M6.  This may be an uncataloged LPV.


Magyar Csillagaszati Egyesulet, Valtozocsillag Szakcsoport (Hungary) (MCSE)
2MASS J17411309-3413226?

Indeed, it seems this is 2MASS J17411309-3413226 which is quite bright in IR: J=7.968, K=5.566. 

J-K= 2.4, so it's a very red object.

Just subjectively, it looks

Just subjectively, it looks extremely red in the image at the link provided at the CBAT page.  Means nothing, perhaps.  GW

American Association of Variable Star Observers (AAVSO)
Special Notice #372 issued on this probable red variable

AAVSO Special Notice #372 has been issued on this probable new red variable, IRAS 17378-3411 = PNV J17411305-3413235. Visual and multicolor observations, as well as spectroscopy, are requested.

Good observing  -  Elizabeth Waagen, AAVSO HQ

American Association of Variable Star Observers (AAVSO)
Correction to coordinates in Special Notice #372

Bart Staels was kind enough to point out (thanks, Bart!) that there is a typo in the coordinates for IRAS 17378-3411 = PNV J17411305-3413235  in AAVSO Special Notice #372. The coordinates should be

RA 17 41 13.10  Dec. -34 13 22.6  (2000.0)

My apologies for the error!

Good observing  -  Elizabeth Waagen

It's an M star

Great spectrum, Terry.

It's a late M star, no sign of emission typical of novae.  It's probably intrinsically red, with extinction on top of that.  Mass-losing pulsator, maybe?