(cba:news) Fwd: AAVSO Alert Notice 434: Outburst of NSV 1436

Joe Patterson jop at astro.columbia.edu
Wed Mar 30 08:22:32 EDT 2011

Dear CBAers,

Well, this is certainly worth a major effort to pursue, despite the 
unfavorable sky position.  We might be able to patch something together 
from our range of longitudes.

Thanks, Matt or Arne - for putting this info together (I never heard of 
it before).


-------- Original Message --------
Subject: AAVSO Alert Notice 434: Outburst of NSV 1436
Date: Wed, 30 Mar 2011 07:32:22 -0400
From: aavso at aavso.org
To: jop at astro.columbia.edu

AAVSO Alert Notice 434

Outburst of NSV 1436
March 30, 2011

The cataclysmic variable NSV 1436 has been discovered in outburst.  This
is the first bright outburst of this star observed since 1948, and
followup observations are strongly encouraged.  Little is known about
the nature of NSV 1436, and observations may help shed light on whether
the star is an infrequently outbursting normal dwarf nova, a WZ Sge
star, or recurrent nova. The object is currently just a few hours east
of the Sun, and will be available for the first half of the night only.
Both time-series and multicolor photometry are encouraged.

NSV 1436 was discovered in outburst by E. Muyllaert (Oostende, Belgium)
at an unfiltered (CV) magnitude of 13.49 on 2011 March 28.9576 (JD
2455649.4576), and was confirmed by M. Linnolt (Hawaii, United States)
at a visual magnitude of 12.8 on March 30.2708 (JD 24556450.7708).  This
star last exhibited a bright outburst in late November 1948 (Brown et
al., 2010, JAAVSO 38, 176), and is a known X-ray source (Bedient 2004,
priv. comm.).  A smaller outburst occurred on 2011 March 9-10, when it
briefly reached magnitude ~14.5 (Linnolt: 14.5 on JD 2455629.7618; M.
Simsonsen, Michigan, United States: V=14.55 on JD 2455630.6615; Linnolt:
14.55 on JD 2455630.7354).  The classification of this object is
unclear, in large part because it has been poorly observed in the past.
The object is typically fainter than V=16, and has been recorded as
faint as magnitude 19.  Photometry during the current outburst may
provide insight into the nature of this object.

NSV 1436 is located at the following (J2000) coordinates:

	RA: 04 02 39.02 , Dec: +42 50 46.0

A new sequence for NSV 1436 was published in late 2010, and observers should
use the new comparison star magnitudes for photometry.  Charts and sequences
for NSV 1436 may be obtained via VSP: http://www.aavso.org/vsp

Please promptly report all observations of this star to the AAVSO using the
name "NSV 1436".

This AAVSO Alert Notice was prepared by Matthew Templeton.


Information on submitting observations to the AAVSO may be found at:



An Alert Notice archive is available at the following URL:

Subscribing and Unsubscribing may be done at the following URL:

More information about the cba-public mailing list