NGC 4636
| Galaxy NGC 4636 |
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|---|---|
![NGC 4636 [1] SDSS, angle of view 10 '× 10'](https://de.wikipedia.org/wiki/Datei:NGC4636_-_SDSS_DR14_(panorama).jpg)
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| NGC 4636 SDSS , angle of view 10 '× 10' | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 42 m 49.827 s |
| declination | + 02 ° 41 ′ 15.99 ″ |
| Appearance | |
| Morphological type | I / S0 (E1) / LINER / Sy3 |
| Brightness (visual) | 9.5 likes |
| Brightness (B-band) | 10.4 mag |
| Angular expansion | 5.9 ′ × 4.6 ′ |
| Position angle | 150 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo cluster NGC 4636 group NGC 4472 group LGG 292 |
| Redshift | 0.003129 ± 0.000014 |
| Radial velocity | 938 ± 4 km / s |
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Stroke distance v rad / H 0 |
(38 ± 3) x 10 6 ly (11.8 ± 0.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | February 23, 1784 |
| Catalog names | |
| NGC 4636 • UGC 7878 • PGC 42734 • CGCG 043-002 • MCG + 01-32-137 • 2MASX J12424986 + 0241160 • VCC 1939 • GC 3169 • 3170 • H II 38 • h 1399 • 1401 • GALEX ASC J124249.87 + 024117.9 • LDCE 904 NED232 • EVCC 1078 | |
NGC 4636 is an elliptical galaxy from the Hubble type E2 with active galaxies core in the constellation virgin on the ecliptic . It is estimated to be 38 million light years from the Milky Way and about 70,000 light years in diameter. Together with 126 other galaxies it is considered a member of the NGC 4472 group ( LGG 292 ) and is listed under the catalog number VVC 1939 as part of the Virgo galaxy cluster .
In the same area of the sky are u. a. the galaxies NGC 4600 , NGC 4624 , NGC 4643 .
The supernovae SN 1939A (Type Ia) and SN 2020ue were observed here.
The object was discovered on February 23, 1784 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “pB pL iF r”.