Celestial Atlas: NGC 15 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 15 (= PGC 661)
Discovered (Oct 30, 1864) by Albert Marth
A magnitude 13.8 spiral galaxy (type SAB(r)a?) in Pegasus (RA 00 09 02.5, Dec +21 37 28)
Historical Identification: Per Dreyer, NGC 15 (= GC 5084, Marth #3, 1860 RA 00 01 50, NPD 69 10) is "very faint, very small, round, brighter middle". The position precesses to RA 00 09 02.0, Dec +21 36 46, only 0.7 arcmin south of the galaxy listed above and there is nothing else nearby, so the identification is certain.
Historical Note: The NGC entry is copied directly from Lassell's 1866 paper about observations at Malta, which included Marth's discoveries.
Physical Information: Based on a recessional velocity of 6330 km/sec (and H0 = 70 km/sec/Mpc), NGC 15 is about 295 million light years away, in good agreement with redshift-independent distance estimates of 295 to 415 million light years. Given that and its apparent size of about 1.05 by 0.6 arcmin (from the images below), it is about 90 thousand light years across.
SDSS image of region near spiral galaxy NGC 15
Above, a 12 arcmin wide SDSS image centered on NGC 15
Below, a 1.2 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy NGC 15

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