Cannabaceae

NGC 4911
HST image of NGC 4911
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension13h 00m 56.06160s[1]
Declination+27° 47′ 27.1512″[1]
Redshift0.02659[2]
Heliocentric radial velocity7866 km/s[2]
Distance378.4 Mly (116.02 Mpc)[3]
Apparent magnitude (V)13.7[2]
Apparent magnitude (B)13.33[2]
Characteristics
TypeSAB(r)bc[4]
Apparent size (V)1.3
Notable featuresDreyer's description: 1st of 4, F, pL, *11 2' np
Other designations
UGC 8128, MCG +05-31-093, PGC 44840[2]

NGC 4911 is a disturbed, warped spiral galaxy with a bright prominent central starburst ring and located deep within the Coma Cluster of galaxies, which lies some 300 million light years away in the northern constellation Coma Berenices.[5] NGC 4911 is believed to be interacting with its warped, barred lenticular companion (or any of its many other nearby companions), producing the enhanced star formation and shell-like appearance seen in optical images. The galaxy contains rich lanes of dust and gas near its centre. The existence of clouds of hydrogen within the galaxy indicates ongoing star formation.[5] It is rare for a spiral galaxy to be situated at the heart of a cluster.

References

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  1. ^ a b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  2. ^ a b c d e "NGC 4911". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-12-12.
  3. ^ Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
  4. ^ "Results for object NGC 4911 (NGC 4911)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-12-12.
  5. ^ a b "NASA Image of the Day". NGC 4911. Retrieved 11 Aug 2010.
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  • Media related to NGC 4911 at Wikimedia Commons


One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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