[vsnet-alert 13171] Re: (cba:chat) Observations T Pyx 110414
Tom Krajci
tom_krajci at tularosa.net
Fri Apr 15 09:54:16 JST 2011
AAVSONet telescope BSM (Bright Star Monitor) will sit on that field
tonight (1.5 x 2 deg FOV) and take BVRI exposures for about two
hours...when the object sets in trees.
Eventually we will have more photometry of the field to provide the data
you need. Arne is currently on the road...so it may not be until some
time next week that this information is available.
Also, we hope to have BSM-South (Australia) do better work than BSM New
Mexico...better location for this southern target, and their observing
window is six hours.
Should be mostly clear tonight, but windy...but BSM is small and will
not be shaken by the wind.
Tom Krajci
Cloudcroft, New Mexico
========================================================
On 4/14/2011 6:36 PM, Enrique de Miguel wrote:
> Measurements at April 14, UT 20:14:38 (JD 666.343) show T Pyx at
> 9.10B and 9.24V. I've got measurements in R and I bands,
> but I find no photometry for nearby reference stars in these bands.
> Any hint?
>
> Enrique de Miguel
> CBA Spain
>
> On 14 Apr 2011, at 17:13, Peter Nelson wrote:
>
>> Time series of T Pyx from JD 665.998 to 666.10 revealed a linear
>> rise in brightness from V=11.54
>> to V=10.94. This corresponds to a magnitude rise of 5/day.
>>
>> Trees halted observations at 30 degree altitude.
>>
>> Light curve on the web page.
>>
>> Peter Nelson
>> www.ellinbankobservatory.com
>
--
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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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