NGC 3664
| Galaxy NGC 3664 |
|
|---|---|
![NGC 3664 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC3664_-_SDSS_DR14.jpg)
|
|
| NGC 3664 SDSS image | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 24 m 24.25 s |
| declination | + 03 ° 19 ′ 30.0 ″ |
| Appearance | |
| Morphological type | SB (s) m / pec |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2 ′ × 1.9 ′ |
| Position angle | 42 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 324 Leo II group NGC 3640 group LGG 233 |
| Redshift | 0.004607 ± 0.000007 |
| Radial velocity | (1381 ± 2) km / s |
|
Stroke distance v rad / H 0 |
(57 ± 4) · 10 6 ly (17.4 ± 1.2) Mpc |
| diameter | 40,000 ly |
| history | |
| discovery | Ernst Temple |
| Discovery date | March 16, 1879 |
| Catalog names | |
| NGC 3664 • UGC 6419 • PGC 35041 • CGCG 039-170 • MCG + 01-29-041 • IRAS 11218 + 0336 • 2MASX J11242425 + 0319299 • Arp 5 • VV 251 • HIPASS J1124 + 03 • WISEA J112424.23 + 031930.6 • KPG 283b | |
NGC 3664 = Arp 5 is a barred spiral galaxy of the Hubble type SBm in the constellation Leo on the ecliptic . It is about 57 million light years away from the Milky Way and about 40,000 light years in diameter . Presumably, the galaxy is gravitationally to PGC 35042 ( NGC 3664A / KPG 283a ) bound and is considered a member of the NGC 3640 group (LGG 233).
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with low surface brightness (Arp catalog) .
In the same area of the sky are u. a. the galaxies NGC 3640, NGC 3641 , NGC 3643 , NGC 3647 .
The object was discovered on March 16, 1879 by the German astronomer Ernst Wilhelm Leberecht Tempel .
High-resolution detail of the Hubble space telescope
