NGC 4121
| Galaxy NGC 4121 |
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|---|---|
![NGC 4121 [1]](https://de.wikipedia.org/wiki/Datei:NGC4121_-_SDSS_DR14.jpg)
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| NGC 4121 | |
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 07 m 56.632 s |
| declination | + 65 ° 06 ′ 50.25 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 0.4 '× 0.4' |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.004717 ± 0.000040 |
| Radial velocity | 1414 ± 12 km / s |
|
Stroke distance v rad / H 0 |
(68 ± 5) x 10 6 ly (20.9 ± 1.5) Mpc |
| history | |
| discovery | Heinrich Louis d'Arrest |
| Discovery date | September 9, 1866 |
| Catalog names | |
| NGC 4121 • PGC 38508 • CGCG 315-018 • MCG + 11-15-026 • 2MASX J12075667 + 6506503 • GALEX ASC J120756.85 + 650651.5 • LDCE 867 NED076 • NSA 19290 • WISEA J120756.64 + 650650.2 | |
NGC 4121 is an elliptical dwarf galaxy of the Hubble type E0 in the constellation Dragon in the northern sky . It is an estimated 68 million light years from the Milky Way and is> 10,000 light years in diameter. Together with NGC 4125, it forms the gravitationally bound galaxy pair Holm 335 .
The object was discovered by Heinrich Louis d'Arrest on September 9, 1866 .
Web links
Commons : NGC 4121 - collection of images, videos, and audio files
