Monday, October 14, 2013

M57 - Ring Nebula and Comet ISON racing Asteroid Eros
Small target from the same busy night of 23 Sep 13 :)
(and my first time going to 20min subs)

M57 - Ring Nebula (HaRGB), 23 Sep 13
Equip: TOA-130, EM200, QSI 540wsg
Exp: 4x20m Ha (bin1x1); 1x5m ea RGB (bin2x2)

Full size/details:

On the same night, I took a quick shot of comet ISON, near Mars.  It turns out that during that time, the second-largest largest known near-Earth object (NEO), asteroid Eros, was racing by as well.  In the 3 frames I took, you could see them both moving.

My final result here is of the best from from the three (so is noisy)...a single 4min exposure and in mono (as this was through a single filter, Lum).  I have annotated the result.

Full size/details:

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