NGC 5861
| Galaxy NGC 5861 |
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|---|---|
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| The spiral galaxy NGC 5861 imaged with the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Libra |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 15 h 09 m 16.1 s |
| declination | -11 ° 19 ′ 18 ″ |
| Appearance | |
| Morphological type | SAB (rs) c / Sy2 / HII |
| Brightness (visual) | 11.6 mag |
| Brightness (B-band) | 12.3 mag |
| Angular expansion | 3 ′ × 1.7 ′ |
| Position angle | 155 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.006174 ± 0.000003 |
| Radial velocity | (1851 ± 1) km / s |
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Stroke distance v rad / H 0 |
(82 ± 6) · 10 6 ly (25.0 ± 1.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 9, 1784 |
| Catalog names | |
| NGC 5861 • PGC 54097 • MCG -02-39-003 • IRAS 15065-1107 • 2MASX J15091609-1119179 • GC 4055 • H II 192 • LDCE 1109 NED002 | |
NGC 5861 is an active barred spiral galaxy with extensive star formation from Hubble type SBc in the constellation Libra on the ecliptic . It is estimated to be 82 million light years away from the Milky Way and has a diameter of about 75,000 ly. In the same area of the sky there are u. a. the galaxies NGC 5858 , NGC 5872 , IC 1091 .
In this galaxy the supernovae SN 1971D and SN 2017erp were observed.
The object was discovered on May 9, 1784 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as “pF, pL, slightly extended nearly along the meridian”.