NGC 218
| Galaxy NGC 218 |
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|---|---|
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| The interacting galaxy NGC 218 (right) and galaxy PGC 2726 (left) recorded with the 81 cm reflecting telescope of the Mount Lemmon Observatory | |
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 46 m 32 s |
| declination | + 36 ° 19 ′ 32 ″ |
| Appearance | |
| Morphological type | Sc / pec |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.5 ′ × 1.2 ′ |
| Position angle | 20 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.037426 ± 0.000033 |
| Radial velocity | 11,220 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(509 ± 36) · 10 6 Lj (156.0 ± 10.9) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | October 17, 1876 |
| Catalog names | |
| NGC 218 • UGC 480 • PGC 2720 • CGCG 519-021 • MCG + 06-02-016 • IRAS 00438 + 3603 • 2MASX J00463200 + 3619318 • VV 527 NED01 • GC 5116 • GALEX J004632.57 + 361930.2 | |
NGC 218 is a spiral galaxy from the Hubble type Sc in the constellation Andromeda the northern sky . It is estimated to be 509 million light years from the Milky Way and approximately 220,000 light years in diameter. The galaxy interacts with its lenticular neighbor PGC 2726 .
Due to a conversion error, the galaxy PGC 2493 was often referred to as NGC 218.
The object was discovered on October 17, 1876 by the French astronomer Édouard Stephan .
Web links
Commons : NGC 218 - Collection of Images
