M74, The Phantom Galaxy (Sergey Trudolyubov)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: M 74 · NGC 628

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M74, The Phantom Galaxy

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M74, The Phantom Galaxy

An elusive Phantom Galaxy (M 74/NGC 628), a grand-design spiral galaxy in the constellation Pisces. This image is a combination of LHaRGB exposures obtained with the 250 mm f/4 Lacerta PhotoNewton and ASI183MM Pro camera over several nights in September-November 2020.

The luminance image is a combination of series of 30s, 90s and 180s exposures to expand the dynamic range and reduce the effects of atmospheric turbulence. The L exposures were captured with camera gain of 53, 110 and 200, while RGB and H-alpha exposures were taken at gain 110 and 200:

L: 45x180s (Gain 53, bin 1x1), 69x90s (Gain 110, bin 1x1), 185x30s (Gain 200, bin 1x1)

R: 42x180s (Gain 110, bin 1x1)

G: 45x180s (Gain 110, bin 1x1)

B: 43x180s (Gain 110, bin 1x1)

Ha: 12x600s(Gain 200, bin 1x1)

Total exposure: 14.0 hours

B

Description: With darker background

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C

Description: A close-up version

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E

Description: A more conventional colors

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F

Description: A close-up view with more conventional color

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G

Description: A darker background

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H

Description: A close-up version with a darker background

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ZWO ASI183/QHY183
Fast Newtonians

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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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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	4091705
PixInsight job	55WQU4UGHRYNUPZJ5873TYIC64P23A6Y
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h36m41s.848
RA (top/left)	01h37m50s.632
RA (top/right)	01h35m33s.485
RA (bottom/right)	01h35m33s.241
RA (bottom/left)	01h37m50s.610

Dec (center)	+15°47′03″.56
Dec (top/left)	+15°59′20″.82
Dec (top/right)	+15°59′28″.56
Dec (bottom/right)	+15°34′43″.36
Dec (bottom/left)	+15°34′37″.69

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M74, The Phantom Galaxy

M74, The Phantom Galaxy

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M74, The Phantom Galaxy

M74, The Phantom Galaxy

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Acquisition details

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E

F

G

H

Sky plot

Histogram

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