I Zwicky 36

I Zw 36
Blue compact dwarf galaxy known as Markarian 209 taken by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Canes Venatici
Right ascension	12h 26m 16.02s [1]
Declination	+48° 29′ 36.6″ [1]
Redshift	0.000941 [1]
Heliocentric radial velocity	282 km/s [1]
Distance	19  Mly (5.8  Mpc) [2]
Apparent magnitude  (B)	15.3 [1]
Absolute magnitude  (V)	−14.7 [2]
Characteristics
Type	Blue compact dwarf [2]
Other designations
PG 1223+488, Z 1223.9+4846, Anon 1223+48, PG 1223+487, UZC J122617.1+482938, [H56] 29, ZW I 36, TC 211, SBSG 1223+487, UGCA 281, LEDA 40665, MCG +08-23-035, Mrk 209 [1]

I Zwicky 36, often abbreviated to I Zw 36, is a galaxy in the constellation of Canes Venatici. It is located at a distance of about 5.8 megaparsecs from the Milky Way. ^[2]

I Zwicky 36 is an irregular galaxy, specifically a blue compact dwarf galaxy. These galaxies are small, and have high rates of star formation, making them appear bluish in color. The dominant population of stars in I Zw 36 is young in stellar terms, with ages of under 3 million years. ^[3] It is quite isolated: the nearest galaxy is Messier 94 (NGC 4736) which is about 1.4 megaparsecs away, although the galaxy may have experienced a merger in the past that could explain its current burst of star formation. ^[2]

References

1. "UGCA 281". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 15 December 2014.
2. Ashley, Trisha; Simpson, Caroline E.; Elmegreen, Bruce G. (2013). "The H I Chronicles of LITTLE THINGS BCDs: Evidence for External Perturbations in the Morphology and Kinematics of Haro 29 and Haro 36". The Astronomical Journal. 146 (2): 42. arXiv: 1307.0792 . Bibcode:2013AJ....146...42A. doi:10.1088/0004-6256/146/2/42. S2CID   119304997.
3. "A messy star factory". www.spacetelescope.org. ESA/Hubble. Archived from the original on 20 February 2016. Retrieved 15 December 2014.