M31, ANDROMEDA GALAXY (Amir H. Abolfath)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Great Nebula in Andromeda · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star νAnd

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M31, ANDROMEDA GALAXY

Link: http://amir.torgheh.ir/picture.php?/1237/category/14

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M31, ANDROMEDA GALAXY

Link: http://amir.torgheh.ir/picture.php?/1237/category/14

How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy, over two million light-years away. Without a telescope, even this immense spiral galaxy appears as an unremarkable, faint, nebulous cloud in the constellation Andromeda. But a bright yellow nucleus, dark winding dust lanes, luminous blue spiral arms, and bright red emission nebulas are recorded in this stunning six-hour telescopic digital mosaic of our closest major galactic neighbor. While even casual skygazers are now inspired by the knowledge that there are many distant galaxies like M31, astronomers seriously debated this fundamental concept only 100 years ago. Were these "spiral nebulae" simply outlying gas clouds in our own Milky Way Galaxy or were they "island universes" -- distant galaxies of stars comparable to the Milky Way itself? This question was central to the famous Shapley-Curtis debate of 1920, which was later resolved by observations favoring Andromeda being just like our Milky Way Galaxy -- a conclusion making the rest of the universe much more vast than many had ever imagined. (APOD)

M31, M32 and M110 galaxy

Optic: Vixen VSD100 at F3

Mount: Software Bisque Paramount MX

Camera: SBIG STF8300M

Filters: Baader Ha(7nm) LRGB

Guider: SBIG Sti on 60mm GuideScope

Exposure: Ha: 5x60s + 10x600s + 10x 600s binning 2x2

L: 5x20s+5x60s+18x180s

R: 4x20s+4x60s+10x180s

G: 5x20s+5x60s+9x180s

B: 10x20s+10x60s+16x180s

Integration: 6.6 hours

Binning: All 1x1 Ha 1x1 and 2x2

Calibration: Flats, Dark, Dark Flat, Bias

CCD Sensor Temp: -15c

Dithering: Yes

Software: TheSkyX, ImagesPlus, Registar, PixInsight, Photoshop

The refractors!

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	Basic success
Started	...
Astrometry.net job	3282715
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M31, ANDROMEDA GALAXY

M31, ANDROMEDA GALAXY

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M31, ANDROMEDA GALAXY

M31, ANDROMEDA GALAXY

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