Arp 299
Arp 299 with IC 694 (left) & NGC 3690 (right) Credit: taken by the HST
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	11h 28m 33.13s
Declination	+58° 33„ 58.0“
Redshift	0.0010
Distance	134 Mly
Type	SBm pec. / IBm pec.
Apparent dimensions (V)	2-.4 × 1-.9
Apparent magnitude (V)	11
Notable features	interacting galaxies
Other designations
IC 694, NGC 3690....
See also: Galaxy, List of galaxies

Arp 299 (also known as IC 694 and NGC 3690) are a set of galaxies approximately 134 million light-years away in the constellation Ursa Major.

IC 694 is the primary galaxy while NGC 3690 is the secondary galaxy. They are both barred irregular galaxies.

The interaction of the two galaxies in Arp 299 produced young powerful starburst regions similar to that seen in II Zw 96.^[1] Six supernovae have been detected in Arp 299 (SN 1992bu, SN 1993G, SN 1998T, SN 1999D were observed in NGC 3690 while SN 1990al and SN 2005U were observed in IC 694).

See also

• Antennae Galaxies
• Mice Galaxies

External links

• Astronomy: "Supernova factory" opens annex

References

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