Heart Nebula
Sign in to saveAlso known as Running dog nebula, Sharpless 2-190
HII region in the constellation Cassiopeia
Key facts
- Right ascension
- 02 33 22
- Declination
- +61 ° 26 ′ 36 ″
- Distance
- 7000 ly (2100 pc )
- Apparent dimensions v
- 150' x 150'
- Constellation
- Cassiopeia
- Radius
- 165 ly
- Designations
- NGC 896, IC1805 , Sh 2-190 , Westerhout 4 (W4)
via Wikipedia infobox
Wikidata facts
- Part of
- Heart and Soul
- Has part
- NGC 896
- Constellation
- Cassiopeia
- Distance from Earth
- 1886
- Image
- Heart Nebula IC 1805 NGC 896.jpg
Show 10 more facts
- Commons category
- IC 1805
- spectral class
- B0:
- catalog code
- [KPS2012] MWSC 0209
- apparent magnitude
- 7.03
- right ascension
- 38.1750
- declination
- 61.4500
- radial velocity
- -47.64
- epoch
- J2000.0
- right ascension component of proper motion
- -1.89
- declination component of proper motion
- -2.01
Sources (1)
via Wikidata · CC0
~3 min read
Encyclopedic overview
Heart Nebula as the brightest part of the W4 superbubble/chimney, as seen by the Northern Sky Narrowband Survey.
The Heart Nebula (also known as the Running Dog Nebula, Sharpless 2-190) is an emission nebula, 7,500 light-years (2,300 pc) away from Earth and located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. In 1958, it was identified as a radio source by Gart Westerhout and is therefore also referred to as Westerhout 4 (or W4). It displays glowing ionized hydrogen gas and darker dust lanes.
Excerpted from Wikipedia’s “Heart Nebula” article, available under the CC BY-SA 4.0 licence.