File:Hubble_Interacting_Galaxy_NGC_17_(2008-04-24).jpg · Wikimedia Commons · See Wikimedia Commons
Q29312
Sign in to saveAlso known as New General Catalogue 17, New General Catalogue 34
spiral galaxy in the constellation Cetus
Key facts
- Constellation
- Cetus
- Right ascension
- 00 11 06.5
- Declination
- −12 ° 06 ′ 26 ″
- Heliocentric radial velocity
- 5,881 ± 2 km/s
- Type
- Sc
- Apparent size v
- 2.2 ′ × 0.8 ′
via Wikipedia infobox
Wikidata facts
- Distance from Earth
- 83.2
- Image
- NGC 17HSTScreen.jpg
Show 9 more facts
- Commons category
- NGC 17
- catalog code
- [HB91] 0008-123
- radial velocity
- 5936
- galaxy morphological type
- Sc
- time of discovery or invention
- 1886-11-21
- apparent magnitude
- 14.14
- redshift
- 0.0195
- right ascension
- 2.7775500
- declination
- -12.1078694
Sources (1)
via Wikidata · CC0
~2 min read
Article
NGC 17, also known as NGC 34, is a spiral galaxy in the constellation Cetus. It is the result of a merger between two disk galaxies, resulting in a recent starburst in the central regions and continuing starforming activity. The galaxy is still gas-rich, and has a single galactic nucleus. It lies 250 million light years away. It was discovered in 1886 by Frank Muller and then observed again later that year by Lewis Swift.
The central regions of NGC 17 have a spiral structure. Due to the major merger event NGC 17 has no defined spiral arms like the Milky Way galaxy. Unlike the Milky Way, the center bar nucleus is also distorted. The merger destroyed any galactic habitable zone that may have been there before the merger. For the Milky Way, the galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center, both of which lack hard boundaries.