NGC 5740
| Galaxy NGC 5740 |
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|---|---|
![NGC 5740 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC5740_-_SDSS_DR14.jpg)
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| NGC 5740 SDSS image | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 44 m 24.447 s |
| declination | + 01 ° 40 ′ 47.18 ″ |
| Appearance | |
| Morphological type | SAB (rs) b / NLAGN |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.6 mag |
| Angular expansion | 2.8 ′ × 1.5 ′ |
| Position angle | 160 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 5746 group LGG 386 |
| Redshift | 0.005243 ± 0.000018 |
| Radial velocity | (1572 ± 5) km / s |
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Stroke distance v rad / H 0 |
(70 ± 5) · 10 6 ly (21.5 ± 1.5) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 18, 1787 |
| Catalog names | |
| NGC 5740 • UGC 9493 • PGC 52641 • CGCG 020-008 • MCG + 00-38-003 • IRAS 14418 + 0153 • 2MASX J14442442 + 0140468 • GC 3985 • H II 538 • h 1872 • HIPASS J1444 + 01 • WISEA J144424. 43 + 014047.3 • LDCE 1076 NED025 | |
NGC 5740 is an 11.8 mag bright bar spiral galaxy of the Hubble type SBb with an active galaxy core in the constellation Virgo in the northern sky . It is estimated to be 70 million light years from the Milky Way and about 60,000 light years in diameter. With NGC 5746 it forms the gravitationally bound galaxy pair KPG 434 and together with 29 other galaxies they are members of the NGC 5746 group ( LGG 386 ).
In the same area of the sky are u. a. the galaxies NGC 5725 and IC 1054 .
The object was discovered on March 18, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “pB, cL, iR”.