[vsnet-alert 9842] EX Lup outburstsppp

[Taichi Kato]

   Forwarded message from baavss-alert:
   (also in CBET 1217)

===

In AAVSO Special Notice 93, the pre main-sequence eruptive variable 
EX Lup (AAVSO 1556-40) is reported in outburst. Albert Jones, New 
Zealand reports it at visual magnitude 9.5 on 2008 Jan 19 (14:58UT). 
This is the second brightest outburst in this object's recorded 
history, behind the major outburst of ~ 8.5v, recorded in 1955.

The AAVSO ask observers to continue monitoring this object through 
the current outburst. Filtered photometry of this outburst is 
encouraged; all observations including visual will be very useful in 
tracking the evolution of this current activity.

EX Lup is located at RA: 16:03:05.5 , Dec: -40:18:25 (J2000)

===

  EX Lup is the prototype of EXORs (other well-known objects include
V1118 Ori and V1143 Ori).  Such a bright outburst of any EXOR will
provide excellent opportunity for detailed observation.
Spectroscopic observations, as well as multiwavelength observations,
are strongly encouraged.

  YYYYMMDD(UT)   mag  observer
  20080119.624    93  (A. Jones)
  20080121.731  10.54V  (Martin Nicholson)

   A small outburst of EX Lup was reported to VSNET in 1996:

http://www.kusastro.kyoto-u.ac.jp/vsnet/protostars/exlup.html

More objects:
http://www.kusastro.kyoto-u.ac.jp/vsnet/protostars/