[vsnet-obs 53239] Lanning 386 outburst and literature information

[Taichi Kato]

   According to cvnet, the candidate CV Lanning 386
has brigthtened (Steve Brady's report).

   The object is located at 21:08:34.03  +39:05:35.3

   Accoording to PASP 207, 114 (2002), the spectrum shows
a blue continuum and HeI absorption lines as well as late
K-M features and broad Balmer emission lines.

   According to this literature, the DIB feature suggests
Av of 1.5+/-0.2, which is a bit too large for a usual CV
(the distance estimate in the paper is not very in
contradiction with a luminous CV, though).
This object may not be a CV, but a different class of
emission-line object with a higher luminosity.

   Lick NPM2 catalog gives B=17.09 and B-V=0.03, fairly
consistent with the CV classification.

   USNO-B catalog gives a bright I mag (15.53).

   2MASS J=15.192, H=14.728, Ks=14.532.
   UCAC2 J=13.281, Ks=12.688 (in outburst?)

   Even considering the variable nature of the object,
photometric data (esp. in colors) are rather confusing.

Yet another FY Per-like or V747 Cyg-like object??

object          YYYYMMDD(UT)    mag  code
Lanning386      20050416.34546 16.89C  BXS
Lanning386      20050623.19000 16.90C  BXS
Lanning386      20050625.16712 17.13C  BXS
Lanning386      20050626.27671 16.72C  BXS
Lanning386      20050703.25725 17.23C  BXS
Lanning386      20050704.17103 17.81C  BXS
Lanning386      20050716.18207 16.84C  BXS
Lanning386      20050722.16078 17.36C  BXS
Lanning386      20050724.18388 17.09C  BXS
Lanning386      20050729.22778 <176C  BXS
Lanning386      20050826.17316 1605C  BXS
Lanning386      20050902.13978 <169C  BXS
Lanning386      20050911.11243 15.50C  BXS
Lanning386      20050912.07402 15.10C  BXS

Observer's code:
  BXS: Steve Brady