IC 443 - Ha 7nm Samyang (Tom Gray)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 13 Gem) · 13 mu. Gem · 6 BU Gem · 7 Gem) · 7 eta Gem · 9 Gem · Calx (μ Gem · Gem A · HD254755 · HD42474 · HD43078 · HD43385 · HD43479 · HD43582 · HD43703 · HD43753 · HD43907 · HD43966 · HD44252 · IC 443 · IC 444 · LBN 840 · LBN 841 · LBN 844 · LDN 1564 · LDN 1565 · LDN 1566 · And 11 more.

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IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

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IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

I thought I’d try out some narrowband with my old CCD camera and 7nm filter. Just 30 x 180s has produced quite good signal in and around IC 443, although not much detail - no surprise at an image scale of ~10”/px.

Gemini sets quite early now and was an opportunistic target before Canes Venatici wheeled around sufficiently, above the house, to have a crack at M106. I set up for 4 hours 300s exposures and went to bed, only to find the guiding had aborted after just one frame. No doubt we have all been there at some point!

Nevertheless happy to have achieved something, and I enjoyed processing these data - good SNR and a clean background. I like the sense of depth in the final image, even if the detail is lacking.

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Final
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B

Title: Crop - combined data 183M and DSI3 2.75 hours Ha

Description: Data combined from my DSI 3 Pro CCD 6.45 micron pixels plus 183 Mono 2.4 micron. Baader 7nm Ha. 2.75 hours total. Processed in Siril with GraXpert v3 gradient and noise removal.

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UK Astro-Imaging
Camera Lens Astrophotography
Sky-Watcher Star Adventurer
Altair Astro 183 M/C Hypercams

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Status	Advanced success
Started	...
Astrometry.net job	9743931
PixInsight job	RHRRVP4ROCNJ9A7QM2KO4CQ5FY5PAZKY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h17m18s.35
RA (top/left)	06h11m05s.37
RA (top/right)	06h14m32s.92
RA (bottom/right)	06h23m29s.15
RA (bottom/left)	06h20m07s.27

Dec (center)	+22°55′47″.10
Dec (top/left)	+23°23′39″.9
Dec (top/right)	+21°33′58″.3
Dec (bottom/right)	+22°27′23″.9
Dec (bottom/left)	+24°17′21″.9

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IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

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IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

IC 443 - Ha 7nm Samyang

Revision title: Crop - combined data 183M and DSI3 2.75 hours Ha

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