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Tuesday, September 24, 2013


Comet C/2012 S1 ISON and Asteroid 433 Eros, 24 September 2013

Comet C/2012 S1 ISON and asteroid 433 Eros captured on 24 September with iTelescope T4 at around 5:20 am local time in New Mexico, USA. The image is a stack of 10 x 60 second Luminance exposures. Images stacked then SUMMED using ImageJ, then contrast enhancement applied.Animation made from 9 of 10 images. Contrast enhanced to see the comet tail better.

Had a good night tonight. Comet C/2012 S1 ISON was very close to asteroid 433 Eros (line of sight only, they were around 0.6 AU from each other). Despite strong Moonlight I got some reasonable images I could do astrometery on. Later. Now just revel in the neat little animation showing Eros and ISON moving together in the sky. I have a run with T5 with an R band filter, lets see if that gets rid of the Moonlight interference.

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good work, you should let karl B know about it. things that move in the solar system... rgds cometal
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