NGC 4818
| Galaxy NGC 4818 |
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|---|---|
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| High-resolution image of the Spirllagaglaxie NGC 4818, created with the help of the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 56 m 48.9 s |
| declination | -08 ° 31 ′ 31 ″ |
| Appearance | |
| Morphological type | SAB (rs) from / Sbrst |
| Brightness (visual) | 11.3 mag |
| Brightness (B-band) | 12.1 mag |
| Angular expansion | 4.3 ′ × 1.5 ′ |
| Position angle | 0 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 307 |
| Redshift | 0.003552 +/- 0.000103 |
| Radial velocity | 1065 +/- 31 km / s |
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Stroke distance v rad / H 0 |
(43 ± 3) x 10 6 ly (13.2 ± 1.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 3, 1786 |
| Catalog names | |
| NGC 4818 • PGC 44191 • MCG -01-33-057 • IRAS 12542-0815 • 2MASX J12564890-0831310 • Mrk 9022 • GC 3318 • H II 549 • h 1484/3445 • LDCE 904 NED283 | |
NGC 4818 is a 11.3 mag bright bar spiral galaxy of the Hubble type SBab in the constellation Virgo north of the ecliptic . It is an estimated 43 million light years away from the Milky Way and about 60,000 light years in diameter .
The galaxies NGC 4773 , NGC 4777 , NGC 4780 , IC 3883 are located in the same area of the sky .
The object was discovered on March 3, 1786 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “pB, vL, iF, lbM”. John Herschel noted during his observation in 1834: "B, L, mE in meridian, gpmbM, 3 ′ long".
Web links
Commons : NGC 4818 - collection of images, videos, and audio files
