NGC 4565 | |
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![]() NGC 4565 | |
Observation data (J2000 epoch) | |
Constellation | Coma Berenices |
Right ascension | 12h 36m 20.8s[1] |
Declination | +25° 59′ 16″[1] |
Redshift | 0.004103[1] |
Heliocentric radial velocity | 1230 ± 5 km/s[1] |
Distance | 42.7 ± 12 Mly (13.1 ± 3.7 Mpc)[2] 53 ± 4 Mly (16.2 ± 1.3 Mpc)[3] |
Apparent magnitude (V) | 10.42[1] |
Characteristics | |
Type | SA(s)b?[1] |
Apparent size (V) | 15.90′ × 1.85′[1] |
Other designations | |
UGC 7772,[1] PGC 42038,[1] Caldwell 38 |
NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices.[2] It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile.[4] First recorded in 1785 by William Herschel, it is a prominent example of an edge-on spiral galaxy.[5]