M16 - Ha - 8" RC (Simon)

Celestial hemisphere: Southern · Constellation: Serpens (Ser) · Contains: Eagle Nebula · HD167899 · HD168046 · HD168047 · HD168075 · HD168076 · HD168097 · HD168136 · HD168137 · HD168183 · IC 4703 · LBN 67 · M 16 · NGC 6611 · Sh2-49 · Star Queen · Star Queen nebula

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M16 - Ha - 8" RC

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M16 - Ha - 8" RC

I have been waiting for the weather to pick up, so I could complete this image as an intended SHO, but alas it is not happening at the moment. It may clear tomorrow night, but it is a little unpredictable at the moment. Needless to say, this is a Ritchey Chretien 8" scope image, which equates to an imaging time of 3 hours and 24 minutes. It was a muggy night and I think the focus ended up being a bit 'soft' due to humidity variations, and so I have used deconvolution to try and counterbalance some of that, and because the Dec is at -13, and I am limited to an absolute maximum of -17 degrees, and I only have a certain limited patch of sky at this angle, it was not an easy object to image. For once I got almost perfect round stars at every point in the frame... now someone please explain to me how that is possible when I have the exact same set up every time I use this scope! Maybe the angle of the scope during imaging was such, it meant the balance of the scope 'fixed' the micro tilt?! Thanks everyone and may your skies be clear...

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	8019431
PixInsight job	30RCRYMLLHP5FLGWVYPDFKQKR0ZPAPM7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h18m40s.884
RA (top/left)	18h19m35s.420
RA (top/right)	18h19m41s.146
RA (bottom/right)	18h17m46s.903
RA (bottom/left)	18h17m40s.508

Dec (center)	-13°48′49″.48
Dec (top/left)	-14°09′45″.16
Dec (top/right)	-13°28′54″.45
Dec (bottom/right)	-13°27′52″.73
Dec (bottom/left)	-14°08′42″.29

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M16 - Ha - 8" RC

M16 - Ha - 8" RC

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M16 - Ha - 8" RC

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