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NGC 1512

Coordinates:Sky map04h 03m 54.1662s, −43° 20′ 55.658″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Horologium
NGC 1512
Observation data (J2000epoch)
ConstellationHorologium
Right ascension04h 03m 54.1662s[1]
Declination−43° 20′ 55.658″[1]
Redshift0.002995±0.0000100[1]
Heliocentric radial velocity898±3 km/s[1]
Distance11.6 Mpc (38 Mly)h−1
0.73
[2]
Apparent magnitude (V)11.1[1]
Characteristics
TypeSB(r)ab[1]
Size213,140ly (65.38kpc) (estimated)[1]
Apparent size (V)8.9 × 5.6[1]
Other designations
ESO 250- G 004,IRAS 04022-4329,2MASX J04035428-4320558,MCG -07-09-007,PGC 14391[1]

NGC 1512 is abarred spiral galaxy approximately38 millionlight-years away from Earth[2] in theconstellationHorologium. It was discovered by Scottish astronomerJames Dunlop on 29 October 1826.[3]

The galaxy displays a double ring structure, with a (nuclear) ring around the galactic nucleus and an (inner) further out in the main disk. The galaxy hosts an extended UV disc with at least 200 clusters with recent star formation activity.[4] NGC 1512 is a member of theDorado Group.[5]

Gravitational interaction with NGC 1510

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Gravitational tidal forces of NGC 1512 are influencing nearbydwarflenticular galaxyNGC 1510. The two galaxies are separated by only ~5 arcmin (13.8 kpc),[4] and are in the process of a lengthy merger which has been going on for 400 million years.[6] At the end of this process NGC 1512 will have cannibalised its smaller companion.[7]

Interaction between these two galaxies has triggered star formation activity in the outskirts of the disc and enhanced the tidal distortion in the arms of the NGC 1512. The interaction seems to occur in the north-western areas of the system because of the broadening of the H i arm and the spread of the UV-rich star clusters in this region.[4]

Gallery

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See also

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References

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  1. ^abcdefghi"Results for object NGC 1512".NASA/IPAC Extragalactic Database. Retrieved2006-11-25.
  2. ^ab"NASA/IPAC Extragalactic Database".Results for NGC 1512, Co-Moving Radial Distance. Retrieved2014-12-18.
  3. ^Seligman, Courtney."New General Catalogue Objects: NGC 1512".Celestial Atlas. Retrieved5 December 2025.
  4. ^abcKoribalski, Bärbel S.; López-Sánchez, Ángel R. (2009)."Gas dynamics and star formation in the galaxy pair NGC 1512/1510".Monthly Notices of the Royal Astronomical Society.400 (4): 21.arXiv:0908.4128.Bibcode:2009MNRAS.400.1749K.doi:10.1111/j.1365-2966.2009.15610.x.S2CID 9329781.
  5. ^Maia, M. A. G.; da Costa, L. N.; Latham, David W. (April 1989)."A catalog of southern groups of galaxies".Astrophysical Journal Supplement Series.69:809–829.Bibcode:1989ApJS...69..809M.doi:10.1086/191328.
  6. ^ab"Galactic David and Goliath".www.spacetelescope.org. Archived fromthe original on 1 December 2017. Retrieved27 November 2017.
  7. ^"NGC 1512 and NGC 1510".sci.esa.int. Archived fromthe original on 1 December 2017. Retrieved27 November 2017.

External links

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Wikimedia Commons has media related toNGC 1512.


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