[Aavso-photometry] New variable discovered?

[Dave Lane]

Thanks Rick. Will email you pvtly.

-- Dave
Richard Huziak wrote:
> Hi Dave!
>
> Nothing at that location on VSX, so a new var for Dan :-)  To me it 
> seems that if you caught change in 2 of 4 nights and it was dim on the 
> other two, that you very likey have a new RR Lyr star.  RR's spend most 
> of their time 'fainter' because they are fading 90% of the time, and 
> quick re-detection generally means short period.  RR's have periods of 
> 1/2 day-ish.   Other options less likely are an EB or EA.
>
> I'll jump on it if it clears this weekend.
>
> rick
>
>
> Dave Lane wrote:
>   
>> Hi,
>>
>> A few nights ago, quite by accident when inspecting the light curve of 
>> an asteroid, a new variable was discovered by my colleague Dan Majaess. 
>> This variable is not subtle, but over the course of a bit more than 3 
>> hours, it dropped in brightness (unfiltered) by nearly 0.8 magnitudes!
>>
>> See: http://www.davelane.ca/aro/newvar2.gif (3 other check stars are 
>> also shown - SD is about 0.025)
>>
>> In the next four nights it was "stable" at about V=16, except for the 
>> last observation last night when it jumped up about 0.4 mag! I have 
>> looked carefully at the 5 frames which are combined to make a single 
>> measurement and all individual 60-second frames indicate the same level 
>> of brightening.
>>
>> See: http://www.davelane.ca/aro/newvar1.gif
>>
>> Has anyone seen this sort of behavior before? I'm fairly new at this, so 
>> any idea what type of star this might be and what my next steps should 
>> be (other than MORE DATA!)?
>>
>> Of course, it will be cloudy here for the next several days? Anybody got 
>> an automated scope that wouldn't mind adding this field to their late 
>> night observation list (in V). Transit is about 130am local.
>>
>> Cheers,
>>
>> Dave Lane LDJ
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>>   
>>     
>
>