[vsnet-alert 18710] Re: SDSS J150441.76+084752.6 (= 1502+09) extremely rare outburst

Gianluca Masi gianluca at bellatrixobservatory.org
Wed Jun 10 07:52:24 JST 2015


Dear All,

I've just checked this source right now via the 14" robotic unit part of the 
Virtual Telescope and it is around mag. 18.4, unfiltered.

Best
Gianluca



Il 08/06/2015 15:43, Patrick Schmeer ha scritto:
> SDSS J150441.76+084752.6 (= 1502+09, in Bootes)
>
> is undergoing an extremely rare outburst according to
> two baavss-alert messages from Gary Poyner and
> Victor Hull.
>
> Visual magnitude estimates:
> 2015 Jun 06 23:47 UT, [14.2 (Hull)
> 2015 Jun 07 23:22 UT,  13.7 (Hull)
>
> Apparently no previous outbursts have been recorded of
> this object, which was discovered in 1984 as "a faint
> emission-line star, 1502+09".
>
> Confirmation, spectroscopy, and time-resolved photometry
> are urgently required.
>
> Coordinates: R.A. 15h04m41.76s, Decl. +08°47'52.7" (J2000.0)
>
> Links:
> http://www.aavso.org/vsx/index.php?view=detail.top&oid=132666
> http://archive.stsci.edu/prepds/cvcat/query_processor.cgi?setup_file=varcat.setup.cgi&query_decision=single_record&uid=6907
>
> Clear skies,
> Patrick
>
>



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