NGC 4444

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NGC 4444
NGC 4444 DSS.jpg
DSS image of NGC 4444
Observation data (J2000 epoch)
Constellation Centaurus
Right ascension 12h 28m 36.419s [1]
Declination −43° 15 42.15 [1]
Redshift 0.009771 [1]
Helio radial velocity 2915 km/s [1]
Distance (38.8 ± 5.7 Mpc) [2]
Characteristics
Type SAB(rs)bc [3]
Mass 5.8 × 109 [4]   M
Apparent size  (V)2′.4 × 1′.6 [5]
Other designations
MCG -07-26-007, PGC 41043 [1]

NGC 4444 is an intermediate spiral galaxy in the constellation Centaurus. The morphological classification places it midway on the continuum between a barred spiral (SB) and an unbarred spiral (SA), with an inner region that lies between a ring-like (r) and a purely spiral form (s), and medium- (b) to loosely wound (c) outer spiral arms. This makes it a hybrid ringed, barred spiral galaxy. [6] It has an angular size of 2.4 × 1.6 arcminutes [5] and the estimated mass M is given log  M = 9.76, yielding 5.8 billion solar masses. [4]

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<span class="mw-page-title-main">NGC 4314</span> Barred spiral galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4605</span> Barred spiral galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 5364</span> Spiral galaxy in the constellation Virgo

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<span class="mw-page-title-main">NGC 5755</span> Spiral galaxy in the constellation Boötes

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<span class="mw-page-title-main">NGC 10</span> Spiral galaxy in the constellation Sculptor

NGC 10 is a spiral galaxy located in the southern constellation of Sculptor. It was discovered by John Herschel on 25 September 1834. The galaxy is located at a distance of 346 Mly from the Sun. Its morphological classification in the De Vaucouleurs system is SAB(rs)bc, where the 'SAB' denotes a weak-barred spiral, '(rs)' indicates a slight ring-like structure, and 'bc' means the spiral arms are moderately to loosely wound. Paturel et al. (2003) assigned this galaxy a classification of SBbc, indicating a barred spiral galaxy.

<span class="mw-page-title-main">NGC 24</span> Unbarred spiral galaxy in the constellation Sculptor

NGC 24 is a spiral galaxy in the southern constellation of Sculptor, about 23.8 megalight-years distant from the Milky Way. It was discovered by British astronomer William Herschel in 1785, and measures some 40,000 light-years across. The general shape of this galaxy is specified by its morphological classification of SA(s)c, which indicates it is an unbarred spiral with no ring-like structure and moderate to loosely-wound spiral arms. This galaxy is positioned in the vicinity of the Sculptor Group, but is actually a background object that is more than three times as distant. It may form a pair with another background galaxy, NGC 45.

<span class="mw-page-title-main">NGC 925</span> Barred spiral galaxy in the constellation Triangulum

NGC 925 Amatha Galaxy is a barred spiral galaxy located about 30 million light-years away in the constellation Triangulum. The morphological classification of this galaxy is SB(s)d, indicating that it has a bar structure and loosely wound spiral arms with no ring. The spiral arm to the south is stronger than the northern arm, with the latter appearing flocculent and less coherent. The bar is offset from the center of the galaxy and is the site of star formation all along its length. Both of these morphological traits—a dominant spiral arm and the offset bar—are typically characteristics of a Magellanic spiral galaxy. The galaxy is inclined at an angle of 55° to the line of sight along a position angle of 102°.

<span class="mw-page-title-main">NGC 64</span> Spiral galaxy in the constellation Cetus

NGC 64 is a barred spiral galaxy discovered by Lewis Swift in 1886, and is located in the Cetus constellation.

<span class="mw-page-title-main">NGC 4217</span> Spiral galaxy in constellation Canes Venatici

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<span class="mw-page-title-main">NGC 3059</span> Galaxy in the constellation Carina

NGC 3059 is a barred spiral galaxy. It is located in the constellation of Carina. The galaxy can be described as being faint, large, and irregularly round. It was discovered on February 22, 1835, by John Herschel. The galaxy has been calculated to be 45 - 50 million lightyears from Earth.

<span class="mw-page-title-main">NGC 920</span> Barred spiral galaxy in the constellation Andromeda

NGC 920 is a barred spiral galaxy in the Andromeda constellation. The celestial object was discovered on September 11, 1885 by the American astronomer Lewis A. Swift.

<span class="mw-page-title-main">NGC 937</span> Barred spiral galaxy in the constellation Andromeda

NGC 937 is a barred spiral galaxy located in the constellation Andromeda about 251 million light years from the Milky Way. It was discovered by the French astronomer Édouard Stephan in 1884.

<span class="mw-page-title-main">NGC 768</span> Barred spiral galaxy in the constellation Cetus

NGC 768 is a barred spiral galaxy located in the constellation Cetus about 314 million light years from the Milky Way. It was discovered by the American astronomer Lewis Swift in 1885.

<span class="mw-page-title-main">NGC 624</span>

NGC 624 is a barred spiral galaxy in the constellation of Cetus, which is about 264 million light years from the Milky Way. It was discovered on November 28, 1785, by the German-British astronomer William Herschel.

References

  1. 1 2 3 4 5 "NGC 4444". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-02-04.
  2. "Distance Results for NGC 4444". NASA/IPAC Extragalactic Database. Retrieved 2011-05-11.
  3. "NASA/IPAC Extragalactic Database", Results for NGC 4444, retrieved 2011-05-11
  4. 1 2 Koribalski, B. S.; et al. (July 2004). "The 1000 Brightest HIPASS Galaxies: H I Properties". The Astronomical Journal. 128 (1): 16–46. arXiv: astro-ph/0404436 . Bibcode:2004AJ....128...16K. doi:10.1086/421744. S2CID   16229767.
  5. 1 2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN   0004-6256. S2CID   18913331.
  6. Keel, William C. (August 2009). "Galaxy Classification". Galaxies and the Universe. Retrieved 2011-05-20.