The Occultation of a 14.2 star by Graf

July 6, 2022 at 9:36:59pm

 

This event will be tough, but possibly do-able at higher integration. The one thing I worry about is the sky brightness, at sun -12 and the moon starting to brighten the sky now. 28 degrees altitude, in Serpens at Az 130.

   

 

Results:

I planned to try this from Rodeo Gulch, but tried to do too much before leaving, and when I did finally get in the car and take off, halfway there I realized there was one thing I'd not grbbed - my camcorder. So I turned around, got home, set up in my driveway, and got a recording there. Ths star was incredibly dim, and the late twilight prevented going to 32x like I wanted - so I left it at 16x. The star was invisible on the monitor and on the LCD camcorder screen. But I was able to see it by doing 7-frame "finder"s in PyMovie and it looks like I had a ~1 second occultation 3.5 seconds early. I'm waiting to see if Kirk can process his video, from upper UCSC to confirm, and then we'll have to see if the software people would like to take on the challenge of adding these sort of reductions to the mix.

Nolthenius