NGC 4414
| Galaxy NGC 4414 |
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|---|---|
![NGC 4414 [1] Hubble Space Telescope](https://de.wikipedia.org/wiki/Datei:NGC_4414_(NASA-med).jpg)
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| NGC 4414 Hubble Space Telescope | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 26 m 27.10 s |
| declination | + 31 ° 13 ′ 24.7 ″ |
| Appearance | |
| Morphological type | SA (rs) c? / HII / LINER |
| Brightness (visual) | 10.3 mag |
| Brightness (B-band) | 11.0 mag |
| Angular expansion | 4 ′, 4 × 3 ′, 0 |
| Position angle | 155 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4274 group LGG 279 |
| Redshift | 0.002388 ± 0.000020 |
| Radial velocity | 716 ± 6 km / s |
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Stroke distance v rad / H 0 |
(32 ± 2) x 10 6 ly (9.92 ± 0.7) Mpc |
| diameter | approx. 56,000 ly |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 13, 1785 |
| Catalog names | |
| NGC 4414 • UGC 7539 • PGC 40692 • CGCG 158-108 • MCG + 05-29-85 • IRAS 12239 + 3129 • KUG 1223 + 315 • 2MASX J12262708 + 3113247 • GC 2972 • H I 77 • h 1258 • NVSS J122627 + 311326 • LDCE 867 NED112 | |
NGC 4414 is an active spiral galaxy of the Hubble-type Sc with extensive star formation areas in the constellation Haar der Berenike in the northern sky . It is estimated to be 32 million light years from the Milky Way and about 40,000 light years in diameter. Together with 18 other galaxies, it forms the NGC 4274 group ( LGG 279 ).
In the same area of the sky are u. a. the galaxies NGC 4359 and IC 3330 .
With the help of the 30-meter radio telescope operated by IRAM on Pico del Veleta in Spain , carbon monoxide was detected for the first time in the outskirts of NGC 4414; apparently the galaxy is 1.5 times the size of its visible part.
On April 20, 1974 has been W. Burgat the supernova SN 1974G from Type Ia discovered.
On June 7, 2013, Fabrizio Ciabattari and Emiliano Mazzoni from the Italian Supernovae Search Project (ISSP) discovered the Type II Supernova SN 2013df .
The object was discovered on March 13, 1785 by the German-British astronomer Wilhelm Herschel .
Web links
- SIMBAD Astronomical Database
- Hubble Space Telescope
- GoBlack
- The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XI. The Cepheids in NGC 4414 , bibcode : 1998ApJ ... 505..207T
Individual evidence
- ^ Aladin Lite
- ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ a b c d e f SEDS : NGC 4414
- ^ VizieR
- ↑ Ute Kehse: Dark hydrogen discovered. In: Wissenschaft.de. November 18, 2004, accessed on September 8, 2019 (German).
- ^ List of Supernovae. HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS, accessed September 16, 2008 .
- ^ Searching NED for object "SN 1974G *". In: NASA / IPAC Extragalactic Database. Retrieved September 16, 2008 .
- ^ The Peak Brightness of SN 1974G in NGC 4414 and the Hubble Constant. In: The Astrophysical Journal. December 10, 1998, accessed June 14, 2013 .
- ↑ Simbad
- ↑ Seligman