[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-obs 4854] Re: [vsnet-alert 685] Southern novae: finding charts & current mags

On 1997-01-13 ringwald@astro.psu.edu said:
   >Does anyone have detailed finding charts, or better, current
   >magnitudes (in V or better, H alpha), for the following novae?  I'd
   >like to include them in my upcoming Hubble Space Telescope search
   >for nova shells, but being southern, there is little on them in
   >SIMBAD, or on vsnet.

Visual observations on Jan 15 UT by Justin Tilbrook are:

Nova Cen 1995     12:13     < c  (invisible)
Nova Cir 1995     12:30     < f  (invisible)

Refer to Mati Morel's (morel@ozemail.com.au) charts for identifications
of the comparison stars used - neither are in the GSC.  Justin was
observing through a hole in clouds and reports a limiting mag of 13.0.

Some history:

Nova Cir 1995 was "holding" at mag 12.5-13 when it got too close to our
horizons late last year.  It's in a relatively uncluttered field (maybe
a bit of dark nebula behind it??). The Nova Cir lightcurve is a little
uncertain below 11th mag because we went from "numerical" to "lettered"
GSC comparison stars - and GSC mags are a bit wobbly in this part of the
sky!

I unsuccessfully tried to view Nova Cen 1995 last September with a 76cm
reflector.  Limiting mag on that night was near 17.0; but there is a
10.5 field star quite close to the nova's position and a very crowded
background of fainter stars, so I might have overlooked it.

Can't help you with the others.  As far as we're concerned, they're gone!

BTW a Space Telescope picture of Nova Cir would look good on our
Society's web pages  ;)  Especially as Justin and myself were the first
visual observers of this interesting beastie....


cheers,
Fraser Farrell
Variable Stars Group
Astronomical Society of South Australia

WWW: http://vsnet.gist.net.au/assa/   email: fraserf@dove.net.au
traditional:  GPO Box 199, Adelaide, SA 5001, Australia


Net-Tamer V 1.07 - Registered