NGC 4654

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NGC 4654
Ngc4654-hst-R814GB450.jpg
NGC 4654 as imaged by the Hubble Space Telescope.
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 43m 42.6s [1]
Declination +13° 07′ 36″ [1]
Redshift 1046 ± 5 km/s [1]
Distance 55.0 Mly
Group or cluster Virgo Cluster
Apparent magnitude  (V)12.0 [1]
Characteristics
Type SAB(rs)cd [1]
Apparent size  (V)5.2′ × 1.4′ [1]
Other designations
UGC 7902, [1] PGC 42857, VCC 1987 [1]

NGC 4654 is an intermediate spiral galaxy in the constellation of Virgo at a distance of 55 million light years (16.8 mega parsecs) from the Milky Way [2] that can be spotted with amateur telescopes.

Contents

Physical characteristics

NGC 4654 is a member of the Virgo Cluster of galaxies that shows peculiarities in the distribution of both its atomic hydrogen and molecular hydrogen as well as an asymmetry on the distribution of its stars, [3] with the atomic hydrogen being compressed in the galaxy's northwestern part and forming a tail on its southeastern part. [4] While interactions with Virgo's intracluster medium - that is stripping NGC 4654 of its gas as the galaxy moves through it - can explain its gas distribution, it is unable to explain the peculiarities in the distribution of its stars. It has been proposed that NGC 4654 interacted with its neighbor the spiral galaxy NGC 4639 about 500 million years ago; this, combined with weak ram-pressure stripping due to its motion within the Virgo cluster, may explain its features. [3]

Despite suffering a loss of its neutral gas, NGC 4654 does not suffer the deficiency of it that is shown in many spiral galaxies of the Virgo cluster and also has the star formation typical for a galaxy of its type. [2]

See also

Related Research Articles

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<span class="mw-page-title-main">Messier 90</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">NGC 4216</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">Eyes Galaxies</span> Pair of galaxies in the constellation Virgo

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<span class="mw-page-title-main">NGC 4450</span> Spiral galaxy in the constellation Coma Berenices

NGC 4450 is a spiral galaxy in the constellation Coma Berenices.

<span class="mw-page-title-main">NGC 4639</span> Galaxy in the constellation Virgo

NGC 4639 is a barred spiral galaxy located in the equatorial constellation of Virgo. It was discovered by German-born astronomer William Herschel on April 12, 1784. John L. E. Dreyer described it as "pretty bright, small, extended, mottled but not resolved, 12th magnitude star 1 arcmin to southeast". This is a relatively nearby galaxy, lying approximately 72 million light-years away from the Milky Way. It is a companion to NGC 4654, and the two appear to have interacted roughly 500 million years ago. NGC 4639 is a member of the Virgo Cluster.

<span class="mw-page-title-main">Anemic galaxy</span> Type of spiral galaxy characterized by a low contrast between its spiral arms and the disk

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<span class="mw-page-title-main">NGC 4651</span> Spiral galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4262</span> Galaxy in the constellation Coma Berenices

NGC 4262 is a lenticular galaxy located in the constellation of Coma Berenices.

<span class="mw-page-title-main">NGC 4402</span> Spiral galaxy in the constellation Virgo

NGC 4402 is a relatively near, edge-on spiral galaxy located around 50 million light-years from Earth. It is in the constellation of Virgo within the Virgo Cluster of galaxies. It can be seen when viewing Markarian's Chain.

<span class="mw-page-title-main">NGC 4457</span> Galaxy in the constellation of Virgo

NGC 4457 is an intermediate spiral galaxy located about 55 million light-years away in the constellation of Virgo. It is also classified as a LINER galaxy, a class of active galaxy defined by their spectral line emissions. NGC 4457 Is inclined by about 33°. It was discovered by astronomer William Herschel on February 23, 1784. Despite being listed in the Virgo Cluster Catalog as VCC 1145, NGC 4457 is a member of the Virgo II Groups which form an extension of the Virgo cluster.

<span class="mw-page-title-main">NGC 4606</span> Spiral galaxy in the constellation Virgo

NGC 4606 is a spiral galaxy located about 55 million light-years away in the constellation of Virgo. NGC 4606 was discovered by astronomer William Herschel on March 15, 1784. It has a disturbed stellar disk suggesting the actions of gravitational interactions. NGC 4607 may be a possible companion of NGC 4606. However, their redshifts differ by about 600 km/s, making it unlikely that they are a gravitationally bound pair. NGC 4606 is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4476</span> Galaxy in the constellation of Virgo

NGC 4476 is a lenticular galaxy located about 55 million light-years away in the constellation Virgo. NGC 4476 was discovered by astronomer William Herschel on April 12, 1784. The galaxy is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4522</span> Spiral galaxy in the constellation of Virgo

NGC 4522 is an edge-on spiral galaxy located about 60 million light-years away within the Virgo Cluster in the constellation Virgo. NGC 4522 is losing its molecular gas though ram-pressure stripping as it plows though the cluster at a speed of more than 10 million kilometres per hour. The galaxy was discovered by astronomer John Herschel on January 18, 1828.

<span class="mw-page-title-main">NGC 4580</span> Galaxy in the constellation Virgo

NGC 4580 is an unbarred spiral galaxy located about 70 million light-years away in the constellation Virgo. NGC 4580 is also classified as a LINER galaxy. It was discovered by astronomer William Herschel on February 2, 1786 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4607</span> Galaxy in the constellation Virgo

NGC 4607 is an edge-on spiral galaxy located about 56 million light-years away in the constellation Virgo. NGC 4607 was discovered by astronomer R. J. Mitchell on April 24, 1854. The galaxy is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4294</span> Galaxy in the constellation Virgo

NGC 4294 is a barred spiral galaxy with flocculent spiral arms located about 55 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4298</span> Galaxy in the constellation Coma Berenices

NGC 4298 is a flocculent spiral galaxy located about 53 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 8, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4299</span> Spiral galaxy in the constellation Virgo

NGC 4299 is a featureless spiral galaxy located about 55 million light-years away in the constellation Virgo. It was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4302</span> Galaxy in the constellation Coma Berenices

NGC 4302 is an edge-on spiral galaxy located about 55 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 8, 1784 and is a member of the Virgo Cluster.

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 4654. Retrieved 2012-12-24.
  2. 1 2 Koopmann, R.; Kenney, J. D. P. (2004). "Hα Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies". The Astrophysical Journal. 613 (2): 866–885. arXiv: astro-ph/0406243 . Bibcode:2004ApJ...613..866K. doi:10.1086/423191. S2CID   17519217.
  3. 1 2 Vollmer, B. (2003). "NGC 4654: Gravitational interaction or ram pressure stripping?". Astronomy and Astrophysics. 398 (2): 525–539. arXiv: astro-ph/0211321 . Bibcode:2003A&A...398..525V. doi:10.1051/0004-6361:20021729. S2CID   7265130.
  4. ↑ Chung, Aeree; van Gorkom, J. H.; Kenney, Jeffrey D. P.; Vollmer, Bernd (2007). "Virgo Galaxies with Long One-sided H I Tails". The Astrophysical Journal. 659 (2): L115–L119. arXiv: astro-ph/0703338 . Bibcode:2007ApJ...659L.115C. doi:10.1086/518034. S2CID   13021118.


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