Celebrating the Beauty of the Night Sky
MN
Great Andromeda Galaxy
M31 | Messier 31 | NGC 224
The Great Andromeda Galaxy, at 220,000 light years across and a trillion stars, is over twice the size and population of the Milky Way.


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All Images of Great Andromeda Galaxy
22 Oct 2017

24 Sep 2016

23 Sep 2016

06 Nov 2013

09 Oct 2010

18 Sep 2004

Details:
Night of:Friday September 17, 2004
Site:Joshua Tree
Local Time:12:15 AM | Sep 18, 2004
Altitude:70°
RA:00h 42m 44s
Declination:+41d 17'
Distance:2.5 million light years
Magnitude:+3.4 mV
Size:190' x 60'
Camera Settings:
Telescope:9.25-SCT
Camera:SBIG ST237A
f/ratio:f/10
Pixel Scale:0.717 arcsec
Image Size:644 x 481 pixels (0.3 MP)
7.7' x 5.7'
Exposure:30 sec
Stacked Frames:6
Total Integration:3 minutes
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