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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Fast Newtonians
ZWO ASI183/QHY183

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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	4056008
PixInsight job	I8JEOYYY41D7CGMD568ZKIME1C53VRPW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h36m41s.897
RA (top/left)	01h37m17s.167
RA (top/right)	01h36m06s.907
RA (bottom/right)	01h36m06s.685
RA (bottom/left)	01h37m16s.822

Dec (center)	+15°47′01″.30
Dec (top/left)	+15°55′25″.70
Dec (top/right)	+15°55′30″.35
Dec (bottom/right)	+15°38′38″.10
Dec (bottom/left)	+15°38′32″.70

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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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F

G

H

Sky plot

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