NGC 2803
| Galaxy NGC 2803 |
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|---|---|
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| SDSS image of NGC 2802 & NGC 2803 (center) | |
| AladinLite | |
| Constellation | cancer |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 09 h 16 m 43.9 s |
| declination | + 18 ° 57 ′ 17 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 1.1 ′ × 0.9 ′ |
| Position angle | 45 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.029704 +/- 0.000043 |
| Radial velocity | 8905 +/- 13 km / s |
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Stroke distance v rad / H 0 |
(394 ± 28) · 10 6 ly (120.7 ± 8.5) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 21, 1784 |
| Catalog names | |
| NGC 2803 • UGC 4898 • PGC 26181 • MCG + 03-24-027 • 2MASX J09164387 + 1857167 • GC 1787 • H III 63 • h 575 • LDCE 0622 NED009 | |
NGC 2803 is a galaxy in the constellation Cancer on the ecliptic , which is an estimated 394 million light years from the Milky Way . The galaxy NGC 2802 is located in the same area of the sky .
The object was discovered on March 21, 1784 by the astronomer William Herschel .