File:Starburst_in_NGC_4449_(captured_by_the_Hubble_Space_Telescope).jpg · Wikimedia Commons · See Wikimedia Commons
Key facts
- Constellation
- Canes Venatici
- Right ascension
- 12 28 11.1237
- Declination
- +44 ° 05 ′ 37.197 ″
- Redshift
- 0.000 690 ± 0.000 013
- Heliocentric radial velocity
- 207 ± 4 km/s
- Distance
- 13.08 ± 0.98 Mly (4.01 ± 0.30 Mpc )
- Type
- IBm
- Size
- ~29,400 ly (9.02 kpc ) (estimated)
- Apparent size v
- 6.2′ × 4.4′
via Wikipedia infobox
Wikidata facts
- Constellation
- Canes Venatici
- Distance from Earth
- 3.0
- Image
- Starburst in NGC 4449 (captured by the Hubble Space Telescope).jpg
Show 11 more facts
- Commons category
- NGC 4449
- redshift
- 0.000680
- catalog code
- Caldwell 21
- right ascension
- 187.0463250
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1788-04-27
- apparent magnitude
- 10.469
- declination
- 44.0935583
- galaxy morphological type
- Im/BCD
- radial velocity
- 259
- epoch
- J2000.0
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
NGC 4449, also known as Caldwell 21, is an irregular Magellanic type galaxy in the constellation Canes Venatici, being located about 13 million light-years away. It was discovered by German-British astronomer William Herschel on 27 April 1788. It is part of the M94 Group or Canes Venatici I Group that is relatively close to the Local Group hosting our Milky Way galaxy.
Characteristics
Excerpted from Wikipedia’s “NGC 4449” article, available under the CC BY-SA 4.0 licence.