NGC 5220
| Galaxy NGC 5220 |
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|---|---|
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| AladinLite | |
| Constellation | centaur |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 35 m 56.7 s |
| declination | -33 ° 27 ′ 14 ″ |
| Appearance | |
| Morphological type | SAa pec sp HII? |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2.4 ′ × 0.7 ′ |
| Position angle | 97 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.013993 +/- 0.000020 |
| Radial velocity | 4195 +/- 6 km / s |
|
Stroke distance v rad / H 0 |
(181 ± 13) · 10 6 ly (55.6 ± 3.9) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | June 3, 1836 |
| Catalog names | |
| NGC 5220 • PGC 47972 • ESO 383-G036 • MCG -05-32-046 • IRAS 13330-3311 • 2MASX J13355666-3327137 • SGC 133305-3311.9 • GC 3594 • h 3521 • LDCE 0996 NED031 | |
NGC 5220 , also known as the Sombrero Galaxy , is a 12.3 mag bright spiral galaxy of the Hubble type Sa in the constellation Centaur and about 181 million light-years from the Milky Way.
The object was discovered on June 3, 1836 by John Herschel with an 18-inch reflector telescope, who noted "vF, S, R, precedes a star 10th mag distance 1.5 diam by diagram".