Distant pair of interacting galaxies in the constellation Eridanus
NGC 1741
The pair: NGC 1741A (left) and NGC 1741B (right) as taken by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation
Eridanus
Right ascension
05h 01m 38.3s
Declination
−04° 15′ 25.2″
Redshift
0.013473 ± 0.000018
Heliocentric radial velocity
4 039 ± 5 km/s
Distance
56.4 ± 3.9 Mpc (184 ± 13 Mly)h−1 0.73
Apparent magnitude (V)
14.4 / 14.6
Apparent magnitude (B)
15.0 / 15.2
Characteristics
Type
Im D
Apparent size (V)
1.0' × 0.3' / 0.4' × 0.15'
Other designations
HCG 31A / 31B
PGC 16574 / 16570
MK 1089
IRAS04591-0419
MGC -1-13-45
ARP 259
References: [1][2]
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NGC 1741 is a distant pair of interacting galaxies (NGC 1741A and NGC 1741B) in the Eridanus constellation.[3][4] It was discovered on 6 January 1878 by French astronomer Édouard Stephan.[5] As a result of the collision, the galaxies are in a rapid starburst phase.[6][4] The galaxies are classed as Wolf–Rayet galaxies due to their high content of rare Wolf–Rayet stars.[7]
This pair of spiral galaxies is made up of PGC 16570 (NGC 1741B) and PGC 16574 (NGC 1741A). This pair is part of the Halton Arp catalog as Arp 259 and the Hickson Compact Group as HCG 31A (NGC 1741A) and HCG 31B (NGC 1741B).[6][5]
^"NGC 1741". simbad.u-strasbg.fr. Retrieved 25 February 2017.
^"NASA/IPAC Extragalactic Database". nedwww.ipac.caltech.edu. Retrieved 25 February 2017.
^"Revised NGC Data for NGC 1741". spider.seds.org. Retrieved 25 February 2017.
^ ab"Hubble Reveals Young Starburst Activity in Colliding Galaxies". www.spacetelescope.org. Retrieved 25 February 2017.
^ ab"New General Catalog Objects: NGC 1700 - 1749". cseligman.com. Retrieved 25 February 2017.
^ abJohnson, Kelsey E.; Vacca, William D.; Leitherer, Claus; Conti, Peter S.; Lipscy, Sarah J. (1 April 1999). "The Very Young Starburst Merger System NGC 1741*". The Astronomical Journal. 117 (4): 1708–1724. Bibcode:1999AJ....117.1708J. doi:10.1086/300800. ISSN 1538-3881.
^Conti, Peter S.; Leitherer, Claus; Vacca, William D. (20 April 2017). "Hubble Space Telescope Ultraviolet Spectroscopy of NGC 1741: A Nearby Template for Distant Energetic Starbursts*". The Astrophysical Journal Letters. 461 (2). arXiv:astro-ph/9602084. doi:10.1086/310005. ISSN 1538-4357. S2CID 17844237.
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