Thor's Helmet - Ha and OIII using the duo-filter (Simon)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: HD56366 · HD56500 · HD56501 · HD56525 · HD56547 · HD56548 · HD56574 · HD56594 · HD56595 · HD56676 · HD56771 · HD56772 · HD56802 · HD56803 · HD56829 · HD56830 · HD56831 · HD56950 · HD56970 · HD57008 · HD57009 · HD57027 · HD57057 · HD57083 · HD57084 · HD57116 · HD57233 · HD57256 · HD57323 · IC 468 · And 4 more.

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Thor's Helmet - Ha and OIII using the duo-filter

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Thor's Helmet - Ha and OIII using the duo-filter

This was a marathon effort. I managed to obtain 25 images at 8 minutes long each, thus obtaining an imaging time of 3 hours and 20 minutes, under a 63% illuminated moon - not ideal, but manageable in spite of the filter not being especially 'narrow' band. I was hoping to double the number of subs, but every night I took the scope out cloud would drift over, contrary to every forecast and app. I even kept the mount out with an umbrella over it to keep the rain off, and when I finally got a night that was clear, the moon was so bright, any further imaging was pointless! I now have a storm approaching, but I hope to image 'something' again soon... Thanks everyone!

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Description: A lighter version, because I feel astrobin sometimes darkens my images compared to how I see things here. Odd...

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Status	Advanced success
Started	...
Astrometry.net job	3231732
PixInsight job	9BZEAUC9TIKCPXC70XEXX0I9T9L88WX5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h18m32s.28
RA (top/left)	07h17m09s.80
RA (top/right)	07h15m55s.18
RA (bottom/right)	07h19m55s.32
RA (bottom/left)	07h21m08s.80

Dec (center)	-13°12′14″.7
Dec (top/left)	-12°21′38″.3
Dec (top/right)	-13°50′56″.6
Dec (bottom/right)	-14°02′46″.4
Dec (bottom/left)	-12°33′22″.2

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Thor's Helmet - Ha and OIII using the duo-filter

Thor's Helmet - Ha and OIII using the duo-filter

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Thor's Helmet - Ha and OIII using the duo-filter

Thor's Helmet - Ha and OIII using the duo-filter

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