| Reflection nebula | |
|---|---|
| Variable nebula | |
Anear-infrared image of NGC 1555
| |
| Observation data: J2000.0 epoch | |
| Right ascension | 4h21m 57.1s[1] |
| Declination | +19° 32′ 7″[1] |
| Constellation | Taurus |
| Designations | Hind's Nebula,[1] Sharpless 238 |
| See also: Lists of nebulae | |
NGC 1555, sometimes known as Hind's Variable Nebula,[2] Sh2-238 or HH 155, is a variable nebula 4 light years across,[3] illuminated by the star T Tauri, located in the constellation Taurus. It is 400 light years away from Earth, and has a magnitude (B)[4] of 9.98. It is also in the second Sharpless catalog as 238. It is a Herbig–Haro object.[5] The nebula was discovered on October 11, 1852, by John Russell Hind.
