NGC 540
| Galaxy NGC 540 |
|
|---|---|
|
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| SDSS recording | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 27 m 08.9 s |
| declination | -20 ° 02 ′ 12 ″ |
| Appearance | |
| Morphological type | SB (s) 0: |
| Brightness (visual) | 14.8 mag |
| Brightness (B-band) | 15.8 mag |
| Angular expansion | 0.9 ′ × 0.4 ′ |
| Position angle | 178 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.033700 ± 0.000213 |
| Radial velocity | 10,103 ± 64 km / s |
|
Stroke distance v rad / H 0 |
(451 ± 32) · 10 6 ly (138.3 ± 9.7) Mpc |
| history | |
| discovery | Francis P. Leavenworth |
| Discovery date | October 15, 1885 |
| Catalog names | |
| NGC 540 • PGC 5410 • ESO 542-012 • 2MASX J01270888-2002119 • GALEX ASC J012708.92-200211.8 | |
NGC 540 is a lenticular galaxy of the Hubble type SB0 in the constellation Whale south of the ecliptic . It is estimated to be 451 million light years from the Milky Way and about 120,000 light years in diameter.
The object was discovered on October 15, 1885 by the American astronomer Francis Preserved Leavenworth .
Web links
Commons : NGC 540 - collection of images, videos, and audio files
