[vsnet-alert 8718] Possible nova in Sct: ASAS 183843-1216.3

[Grzegorz Pojmanski]

Possible nova in Sct: ASAS 183843-1216.3

Grzegorz Pojmanski, Warsaw University Astronomical Observatory reports:

ASAS3V instrument of The All Sky Automated Survey (telephoto lens 180/2.8, 
diameter 65mm + CCD + Johnsons V  filter, 3 minute exposures, pixel size 
14.8 arcsec, rms astrometric accuracy - 4  arcsec) 

has detected possible nova in Sct
at RA = 18h 38m 43s  DEC = -12d 16'.3

No object is visibile at this position on DSS images.

USNO_B1 lists several faint and very red objects around this position:

#          id|           RA|          DEC|    B1|    R1|    B2|    R2|    I2|
 0777-0611924 18:38:42.4147 -12:16:13.640   0.00   0.00   0.00  19.91  19.30 
 0777-0611945 18:38:42.7227 -12:16:17.040   0.00   0.00   0.00  19.51  19.36 
 0777-0611980 18:38:43.1567 -12:16:16.190   0.00  20.00   0.00  20.21  19.41 
 0777-0611989 18:38:43.3007 -12:16:22.140   0.00  19.71   0.00  18.91  19.00 
 0777-0612009 18:38:43.5960 -12:16:21.790   0.00  19.91   0.00  19.94  18.86 
 0777-0612017 18:38:43.6400 -12:16:25.190   0.00  20.28   0.00  19.94  19.35 



Observations:
    DATE      UT                       HJD      V
07/10/2005 01:19:23 (Oct 07.055) 2453650.5551 invisible (V>14)
11/10/2005 00:36:29 (Oct 11.026) 2453654.5250 12.013 
13/10/2005 01:34:22 (Oct 13.066) 2453656.5650 10.419


Light curve and images can be found on
http://www.astrouw.edu.pl/cgi-asas/asas_disc/183843-1216.3,3647

Regards, Grzegorz Pojmanski