Astronomy:NGC 1555
From HandWiki
Short description: Variable nebula in the constellation Taurus
| Reflection nebula | |
|---|---|
| Variable nebula | |
 | |
| Observation data: J2000.0 epoch | |
| Right ascension | 4h 21m 57.1s[1] |
| Declination | +19° 32′ 7″[1] |
| Constellation | Taurus |
| Designations | Hind's Nebula,[1] Sharpless 238 |
NGC 1555, sometimes known as Hind's Variable Nebula, Sh2-238 or HH 155, is a variable nebula 4 light years across,[2] illuminated by the star T Tauri, located in the constellation Taurus. It is 400 light years away from Earth, and has a magnitude (B)[3] of 9.98. It is also in the second Sharpless catalog as 238. It is a Herbig–Haro object.[4] The nebula was discovered on October 11, 1852, by John Russell Hind.
Timelapse of variable nebula activity of NGC 1555 from October 2022 to March 2023 compiled from contributions from the big amateur telescope (https://bigamateurtelescope.com/)
See also
References
- ↑ 1.0 1.1 1.2 "NGC 1555". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1555.
- ↑ "Hind’s Variable Nebula, a variable nebula in Taurus" (in nl-NL). 2013-11-28. http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/hinds-variable-nebula-by-adam-block/.
- ↑ "NGC 1555 (Hind's Nebula) - Reflection Nebula in Taurus | TheSkyLive.com". https://theskylive.com/sky/deepsky/ngc1555-hinds-nebula-object.
- ↑ "Sh 2-238". http://galaxymap.org/cgi-bin/details.py?id=21556&t=hii&s=4_p31.5xp30.5&name=S238.
External links
 |  |
