Arp-Madore 417-391
| Arp-Madore 417-391 | |
|---|---|
 Image of Arp-Madore 417-391 (NASA/ESA Hubble Space Telescope) | |
| Observation data (J2000 epoch) | |
| Constellation | Eridanus |
| Right ascension | 04h 19m 39.3s[1] |
| Declination | −39° 10′ 24″[1] |
| Redshift | 0.050585 ± 0.000150[1] |
| Heliocentric radial velocity | 15165 ± 45 km/s[1] |
| Galactocentric velocity | 15136 ± 45 km/s[1] |
| Distance | 671 ± 47 Mly[2] |
| Apparent magnitude (B) | 15.17[2] |
| Characteristics | |
| Type | Ring galaxy[3] |
| Size | 0.74′ × 0.51′[2] |
| Other designations | |
| AM 0417-391, PGC 14881, ESO 303-IG011[1] | |
Arp-Madore 417-391 is a ring galaxy located 671 million light-years from Earth in the constellation of Eridanus[2]. It is classified as a ring galaxy.[4]
Discovery and Observations
The system was first cataloged in the Catalogue of Southern Peculiar Galaxies and Associations in 1987 by astronomer Halton Arp and Barry F. Mandore.[4]
In November 2022, the European Space Agency and NASA released a detailed image of the system captures by the Hubble Space Telescope's Advanced Camera for Surveys (ACS).[3] This image campaign targeted a list of peculiar objects from the Arp-Mandore catalogue to help identify observation candidates for the JWST.[3]
Characteristics
This galaxy is a pair of interacting galaxies that are merging being distorted by each other's gravity, forming a massive ring shape with the two cores of the galaxies located next to each other on the side of the ring.[5][6]
See also
References
- 1 2 3 4 5 6 "NASA/IPAC Extragalactic Database Results for AM 0417-391". NASA/IPAC. Retrieved June 23, 2026.
- 1 2 3 4 Paturel, G.; Petit, C.; Prugniel, P.; et al. (November 2003). "HYPERLEDA. I. Identification and designation of galaxies". Astronomy & Astrophysics. 412 (1): 45–55. Bibcode:2003A&A...412...45P. doi:10.1051/0004-6361:20031411.
- 1 2 3 "Hubble Hunts an Unusual Galaxy". ESA/Hubble. November 21, 2022. Retrieved June 23, 2026.
- 1 2 Madore, Barry F.; Nelson, Eric; Petrillo, Kristen (May 2009). "Atlas and Catalog of Collisional Ring Galaxies". The Astrophysical Journal Supplement Series. 181 (2): 572–604. arXiv:0902.4629. Bibcode:2009ApJS..181..572M. doi:10.1088/0067-0049/181/2/572.
- ↑ information@eso.org. "Hubble Hunts an Unusual Galaxy". www.esahubble.org. Retrieved 2025-07-11.
- ↑ Lazaro, Enrico de (2022-11-21). "Hubble Space Telescope Observes Peculiar Galaxy Merger | Sci.News". Sci.News: Breaking Science News. Retrieved 2025-07-11.
