IC 4539
| Galaxy IC 4539 |
|
|---|---|
|
|
| with LEDA 1995214 (l), LEDA 1996072 (o) & LEDA 1993337 (ru) | |
| AladinLite | |
| Constellation | Northern crown |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 18 m 31.1 s |
| declination | + 32 ° 23 ′ 34 ″ |
| Appearance | |
| Morphological type | Sbc |
| Brightness (visual) | 15.5 mag |
| Brightness (B-band) | 16.1 mag |
| Angular expansion | 0.4 ′ × 0.4 ′ |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.061307 ± 0.000155 |
| Radial velocity | 18,379 ± 46 km / s |
|
Stroke distance v rad / H 0 |
(826 ± 58) · 10 6 Lj (253.2 ± 17.7) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | June 23, 1903 |
| Catalog names | |
| IC 4539 • PGC 54642 • MCG + 06-34-003 • IRAS F15165 + 3234 • 2MASX J15183111 + 3223345 • GALEX ASC J151831.20 + 322335.4 | |
IC 4539 is a spiral galaxy of the Hubble type Sbc in the constellation Corona Borealis in the northern sky . It is estimated to be 826 million light years from the Milky Way and about 95,000 ly in diameter.
The object was discovered by Stéphane Javelle on June 23, 1903 .