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NGC 1374

From Wikipedia, the free encyclopedia
Galaxy in the constellation Fornax
NGC 1374
Hubble Space Telescope image of NGC 1374 (up) andNGC 1375 (down)
Observation data (J2000epoch)
ConstellationFornax
Right ascension03h 35.16m[1]
Declination−35° 13′[1]
Distance18.1 Mpc (59 Mly)
Apparent magnitude (V)11.0[1]
Characteristics
TypeE1[1]
Apparent size (V)2.7 × 2.4[1] (50 000 light-years in diameter)
Notable featureslow-luminosity elliptical galaxy
Other designations
MCG -06-08-029,PGC 13267[2]

NGC 1374 is a low-luminosityelliptical galaxy in the southern constellationFornax. It was discovered byJohn Herschel on November 29, 1837.

Location

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It is at a distance of 59 million light years. The galaxy may form a pair with another nearby galaxy,NGC 1375, but this is uncertain based on the estimated distance ofNGC 1375. It is a member of theFornax Cluster, a cluster of 200 galaxies, and it is positioned near the center of the cluster and central galaxyNGC 1399, while the closest galaxy afterNGC 1375, outside the pair, isNGC 1373. NGC 1374's size on the night sky is 2.7 × 2.4 which, with the galaxy's distance, gives a diameter of 50,000 light-years.

Classification

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NGC 1374 is an early-type galaxy with aHubble classification of E1, indicating a flattening of 10%, but also it shows a subtle differentiation of light about halfway out of radius, which is indicating transition to S0 classification. It has a bright core surrounded by a soft hazy halo.[3]

Despite their name, early-type galaxies are much older than spiral galaxies, and mostly comprise old, red-colored stars. Very little star formation occurs in these galaxies; the lack of star formation in elliptical galaxies appears to start at the center and then slowly propagates outward.[4]

Globular clusters

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NGC 1374 is rich with globular clusters, with an estimated number of cluster of 406 ± 81. There are blue and red globular clusters, although red globulars are more populous than blue ones. A similar trend is present inNGC 1379 andNGC 1387. These globular clusters, like globulars inNGC 1379 andNGC 1387, did not show any evidences of multiple populations.[5]

References

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  1. ^abcdeDunlop, Storm (2005).Atlas of the Night Sky.Collins.ISBN 978-0-00-717223-8.
  2. ^"NGC 1374".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2021-02-22.
  3. ^"Fornax, a Treasure Trove – Sand and Stars".sandandstars.co.za. Archived fromthe original on 2019-08-29.
  4. ^Howell, Elizabeth (2015)."Colossal Ancient Galaxies Die from the Inside Out".space.com. Retrieved5 March 2017.
  5. ^Bassino, Lilia P.; Richtler, Tom; Dirsch, Boris (2006)."Globular cluster systems in low-luminosity early-type galaxies near the Fornax cluster centre".Monthly Notices of the Royal Astronomical Society.367 (1):156–168.arXiv:astro-ph/0511770.Bibcode:2006MNRAS.367..156B.doi:10.1111/j.1365-2966.2005.09919.x.S2CID 17850142.

External links

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  • Media related toNGC 1374 at Wikimedia Commons
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