Astronomy:Arp 302

Arp 302
Arp 302 consists of a pair of very gas-rich spiral galaxies in their early stages of interaction: VV 340A is seen edge-on at top, and VV 340B face-on below. Composite image of X-ray data from Chandra (purple) and optical data from Hubble (red, green, blue).
Observation data (J2000 epoch)
Constellation	Boötes
Right ascension	14h 56m 54s
Declination	+24° 36.0′ 00″
Redshift	0.034505 (10166 km/s)
Distance	450 Mly (150 Mpc)
Apparent magnitude (V)	11.3 (15.3 + 15.7)
Characteristics
Type	S+S
Apparent size (V)	1.6′ (0.6′ × 0.6′ / 0.9′ × 0.3′)
Other designations
VV 340, IRAS 14547+2448, CGCG 1454.7+2448, APG 302, KPG 446, CGCG 134-58, IRAS F14547+2449, Arp 302, LEDA 53433 / 53432, 2MASX J14570030+2436246 / J14570066+2437026, MCG+04-35-018 / +04-35-019, UGC 9618

Arp 302 (also known as Exclamation Point Galaxy) is a galaxy in the constellation Boötes. Arp 302, also known as VV 340 or UGC 9618 consists of a pair of very gas-rich spiral galaxies in their early stages of interaction. An enormous amount of infrared light is radiated by the gas from massive stars that are forming at a rate similar to the most vigorous giant star-forming regions in our own Milky Way. Arp 302 is 450 million light-years away from Earth, and is the 302nd galaxy in Arp's Atlas of Peculiar Galaxies.

Gallery

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  Video about Arp 302/UGC 9618.

References

• "SCI Website". http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=42641. 
• "ALADIN Website". http://aladin.u-strasbg.fr/AladinPreview?-c=14+56+54%2B24+36.0&ident=UGC++9618&submit=Aladin+previewer. 
• "SkyFactory.org". http://www.skyfactory.org/deepskycatalogue/UGC9618.html. 
• "SIMBAD Extragalactic Database". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=UGC+9618&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id.