[Aavso-photometry] Possible new variable? (corrected)

[Richard Huziak]

Congratulation, Dave.  You're rediscovered a new Algol-type (we think) 
or may be EB variable that was discovered a few nights earlier by Lionel 
Catalan from Thunder Bay during this campaign.  Sorry.  However, I guess 
it is a lesson to trust your instincts even at low amplitude. Your ID is 
correct.  However, we don't know its type for sure or period yet, so 
more data, please!  Reduce your data for it as you do the frames for 
LPH058 and we'll let you know what to do with that data later.   

The other new var during this campaign is Shawn Dvorak's new dSct 
variable that was discovered a few ago as well during this campaign.  
Trust your instincts even at low amplitude. There are a lot of dScts & 
low amp vars out there.  It varies about 0.04 mag in a period of 0.057: 
days..  Don't have my notes handy, it is the first brightish star N of 
LPH057 ~3/4" up.

There are also a lot of non-submitted new vars on the charts that I have 
discovered over the last year of looking at some of these stars.  They 
are listed in the notes on Gord's charts, but most will not appear in 
VSX yet.  In particular, V831 Cas has a new EA, 4 new possible dScts and 
a whoe pile on known dScts.  LPH128 had 2 new vars (see the notes - b & 
D - these ones have AAVSO Harvard Designators and can be reported 
now).   One of the comps on LPH115 *might* be variable but we are not 
sure, nor are we sure which one.

1/2 of these field have not been looked at in detail (the ones from 0 - 
6 hrs) so there are likely new things to come out of those.  Thanks for 
your continuring help :-)

We were clouded out last night after an hour but the telescope broke 
anyway.  Scope is fixed, and we will be running from midnight to morning 
tonite.

rick



Dave Lane wrote:
> Corrected web links:
>
> http://www.davelane.ca/aro/images/lph058b.gif
> http://www.davelane.ca/aro/images/lph058v.gif
>
> --- Dave
>
> Dave Lane wrote:
>   
>> I was doing a time series on two stars last night for Gord Sarty and 
>> Rick Huziak's campaign and my first choice of check star for the LPH058 
>> field seems to be variable. It was imaged in both B and V - see the star 
>> labeled "l" at:
>>
>> http://www.davelane.ca/aro/images/*lph058b.gif
>> *http://www.davelane.ca/aro/images/*lph058v.gif
>>
>> In both filters there is a general brightening trend of about 0.02 in V 
>> and 0.03 in B. The airmass increases until the data gap (the meridian 
>> flip) in the graph and then decreases towards the end **(ignore the last 
>> four points as the airmass was well over 2). **The star has a B-V of 
>> about 0.36 and the comparison star about 0.34.
>>
>> SIMBAD doesn't come up with anything other than identifying it as GSC 
>> 00154-00555 and as an A2V. Nothing in the NSV either. Another 
>> interesting point is that in the subset of the Henden sequence chosen 
>> for the finder chart, this star has the largest reported V error.
>>
>> Being fairly new to this, is this the kind of thing that should be 
>> reported some how or should I continue to observe it or are there just 
>> too many unknown variables to bother with?
>>
>> ... Dave
>>
>>
>>
>> *
>> _______________________________________________
>>
>> Aavso-photometry mailing list
>> Aavso-photometry at mira.aavso.org
>> http://www.aavso.org/mailman/listinfo/aavso-photometry
>>   
>>     
>
> _______________________________________________
>
> Aavso-photometry mailing list
> Aavso-photometry at mira.aavso.org
> http://www.aavso.org/mailman/listinfo/aavso-photometry
>   

-- 
----------------------------------------
Richard Huziak
----------------------------------------
Slogging it out at the DAO
Victoria BC
Need a constant clear-sky dance, please!
----------------------------------------