M82 - a smoldering cigar (Tom Gray)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Cigar Galaxy · M 82 · NGC 3034

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M82 - a smoldering cigar

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M82 - a smoldering cigar

The edge-on ‘starburst’ galaxy M82 sports strong hydrogen emissions streaming above and below a luminous core, induced by the gravitational interactions with M81, and numerous supernovae within the core of this amazing galaxy ~10 per year (according to Wikipedia).

Imaged at f10 (2000 mm) I was pleased with the extra detail available in the core and the milky blue star clouds that veil the disk. A little of the glorious starburst is visible in this RGB image taken using my 183C hypercam with just the inbuilt UV/IR filter; Adding some Ha data would emphasise these.

Collected using ATP, calibrated in Nebulosity and processed in Startools. As with M81, I tried not to over stretch this data, although M82 is brighter and the SNR was better in this image. A little star reduction and 'de-warping' to the stars around the periphery complete the image.

Final
Original
B
C

B

Title: Plus 2 hours Ha

Description: I added 24 x 300s Ha (7nm Baader) to my previous RGB image - aligned in Nebulosity, cropped field rotation, processed as an L(Ha)RGB image in Startools with a final noise reduction using Nebulosity GreyCStoration.

Uploaded: ...

C

Title: RGB data pre-processed in ASTAP

Description: 28 x 180s RGB frames calibrated, aligned, and stacked in ASTAP and processed in Startools. Unfortunately my Ha data did not turn out very good - perhaps I should have increased the gain and taken shorter exposures. I think the colour is better and I'm generally happy how this turned out given the short integration and challenge of imaging at f10 (2000 mm).

Uploaded: ...

Schmidt-Cassegrain Telescope (SCT) Imagers
Altair Astro 183 M/C Hypercams
The OSC Club (One Shot Camera)
UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	5620953
PixInsight job	WJVSOA537KEWUOSIFSNBHAZUPAX4V1CI
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m44s.683
RA (top/left)	09h58m03s.646
RA (top/right)	09h53m27s.461
RA (bottom/right)	09h53m27s.513
RA (bottom/left)	09h58m00s.529

Dec (center)	+69°39′07″.52
Dec (top/left)	+69°46′19″.86
Dec (top/right)	+69°46′29″.92
Dec (bottom/right)	+69°31′48″.77
Dec (bottom/left)	+69°31′38″.58

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M82 - a smoldering cigar

M82 - a smoldering cigar

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M82 - a smoldering cigar

M82 - a smoldering cigar

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