Celestial Atlas: NGC 13 Link for sharing this page on Facebook
IC 5350 - 5386 ← NGC Objects: NGC 1 - 49 → NGC 50 - 99
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Page last updated Aug 12, 2017

NGC 13 (= PGC 650)
Discovered (Nov 26, 1790) by William Herschel
Also observed (Nov 16, 1827) by John Herschel
A magnitude 13.2 spiral galaxy (type (R)S(rs)ab?) in Andromeda (RA 00 08 47.7, Dec +33 26 00)
Historical Identification: Per Dreyer, NGC 13 (= GC 5 = JH 2 = WH III 866, 1860 RA 00 01 35, NPD 57 20.8) is "very faint, very small, small star plus nebulosity". The position precesses to RA 00 08 48.0, Dec +33 25 58, within 0.1 arcmin of the center of the galaxy listed above, so the identification is certain.
Physical Information: Based on a recessional velocity of 4810 km/sec (and H0 = 70 km/sec/Mpc), NGC 13 is about 225 million light years distant, in reasonable agreement with redshift-independent distance estimates of 180 to 215 million light years. Given that and its apparent size of about 2.2 by 0.4 arcmin (from the images below), it is about 140 to 145 thousand light years across.
SDSS image of region near spiral galaxy NGC 13
Above, a 12 arcmin wide SDSS image centered on NGC 13
Below, a 2.4 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy NGC 13

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IC 5350 - 5386 ← NGC Objects: NGC 1 - 49 → NGC 50 - 99