[Aavso-photometry] CSS 081231

Richard Sabo richard at theglobal.net
Mon Jan 5 17:55:13 EST 2009


I've gotten observations of CSS 081231:071126+440405 the last two nights and
they dovetail well with Arto and Roger's observations.  

My scope has 17" aperture and I've followed the light curve down to mag 20+
with 60 sec exposures.  The S/N ranges from 140 down to the mid 30's
depending on the seeing.

If I shorten the exposure to define the margins of the eclipse, how low do I
let the S/N go?  

 

Richard Sabo

Bozeman, MT  USA



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