I Zwicky 36

I Zw 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
Declination	+48° 29′ 36.6″
Redshift	0.000941
Heliocentric radial velocity	282 km/s
Distance	19 Mly (5.8 Mpc)
Apparent magnitude (B)	15.3
Absolute magnitude (V)	−14.7
Characteristics
Type	Blue compact dwarf
Other designations
	Mrk 209, PG 1223+488, UGCA 281, Z 1223.9+4846, Anon 1223+48, PG 1223+487, UZC J122617.1+482938, [H56] 29, LEDA 40665, SBSG 1223+487, ZW I 36, MCG+08-23-035, TC 211

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[edit]

^ ^a ^b ^c ^d ^e ^f "UGCA 281". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 December 2014.
^ ^a ^b ^c ^d ^e 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.
^ "A messy star factory". www.spacetelescope.org. ESA/Hubble. Retrieved 15 December 2014.

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[simbad-1] ^ ^a ^b ^c ^d ^e ^f "UGCA 281". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 December 2014.

[Ashley-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. Retrieved 15 December 2014.

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