[vsnet-alert 13758] NSV01436 bright outburst - time-series plot

[Tom Krajci]

Attached jpeg shows results of uncalibrated, untransformed analysis of 
last night's run using Sloan r' filter.

This object probably has faded too much for me to do any more filtered 
observations.

Is this object worthy of periodic coverage to determine outburst frequency?

-- 
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Tom Krajci
Cloudcroft, New Mexico
http://picasaweb.google.com/tom.krajci

Center for Backyard Astrophysics (CBA)
http://cbastro.org/ CBA New Mexico

American Association of Variable Star
Observers (AAVSO): KTC http://www.aavso.org/
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On 10/11/2011 11:54 PM, Tom Krajci wrote:
> griz images from Astrokolkhoz tonight show that this object is blue, 
> and is currently at approx. r' mag. 14.5  (This includes the light of 
> the faint neighbor approx. 3.5 arcsec away)
>
> Time series is being run tonight for six hours.
>
>
>
> On 10/10/2011 6:41 PM, Taichi Kato wrote:
>>     Fwd from aavso-discussion by Mike Linnolt.
>>     The object is potentially an IP with brief outbursts.
>>
>> ===
>>
>> Just observed it a few hours ago at v=12.4 this is the brightest 
>> outburst
>> since its "reactivation" last year.
>> A brief summary of the star:
>> This is one of the old Ross variables which was discovered early in 
>> the 20th
>> century and had only a few historically recorded outbursts. It was 
>> found to
>> be around v=18 to 19 several times in the past decade. Last year it 
>> began
>> frequent eruptions to v~13, and each eruption seems to be getting 
>> brighter
>> at the peak, as today it is at its brightest in the last 50 years at 
>> least!
>> Could this be a UGZ which has been in a standstill around V~16 the past
>> decade or more, finally resuming its outbursting behavior? Very unusual
>> variable, indeed.
>>
>>
>> Mike LMK
>>
>