IC 4605
| Reflection fog | |
|---|---|
| IC 4605 | |
|
|
| Image of the reflection nebula IC 4605 with the help of the 81 cm reflecting telescope of the Mount Lemmon Observatory . | |
| Constellation | Scorpio |
|
Position equinox : J2000.0 |
|
| Right ascension | 16h 30m 12s |
| declination | -25 ° 06 ′ 55 ″ |
| Further data | |
| Brightness (visual) |
(Central star) 4.79 mag |
| Angular expansion |
4.1 / 4.1 |
| distance |
393 ly. |
| history | |
| discovery | |
| Date of discovery |
1882 |
| Catalog names | |
| IC 4605 • vdB 108; Ced 133; LBN 1110 | |
| Aladin previewer | |
IC 4605 is a reflection nebula that lies in the constellation Scorpio , about 1 ° below the star Antares . The nebula was discovered in 1882 by the astronomer Edward Emerson Barnard with the help of a telescope and was later listed by Johan Dreyer in his index catalog .
Further research has shown that the nebula is around 393 light years from Earth and is part of the Rho-Ophiuchi molecular cloud illuminated by the star HD 148605. The bluish color of the nebula comes from this star, a young blue main sequence star with the spectral classification B3V.
swell
- ^ Simbad Query Result . Retrieved May 17, 2010.
- ↑ a b van den Bergh, S .: A study of reflection nebulae. . In: Astronomical Journal . 71, 1966, pp. 990-998. bibcode : 1966AJ ..... 71..990V . doi : 10.1086 / 109995 .
- ↑ a b VizieR services - star catalogs . Retrieved May 17, 2010.