NGC 4305 explained

NGC 4305
Epoch:J2000
Type:SA(r)a[1]
Dist Ly:30Mpc
H Radial V:1888 km/s
Z:0.006298
Appmag V:13.4
Size V:2.07 x 0.97
Constellation Name:Virgo
Names:UGC 07432, VCC 0522, PGC 040030, MCG +02-32-013
Size:~9.7kpc (estimated)

NGC 4305 is a dwarf spiral galaxy[2] located about 100 million light-years away[3] in the constellation Virgo. The galaxy was discovered by astronomer John Herschel on May 2, 1829.[4] Although considered to be a member of the Virgo Cluster,[5] its high radial velocity and blue luminosity suggest it is in fact a background galaxy. The galaxy has a nearby major companion; NGC 4306.

NGC 4305 exhibits well-defined, smooth spiral arms which terminate well outside its central bulge.[6] This spiral structure appears to have been induced by a tidal interaction with NGC 4306.[7] [8] Such a tidal interaction would also explain its deficiency in neutral hydrogen gas (HI).[9]

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 4305 . 2019-08-01.
  2. Davidge. T. J.. 2018-10-31. The Stellar Contents of Intermediate Mass Disk Galaxies in the Virgo Cluster. I. GMOS Spectra. The Astronomical Journal. 156. 5. 233. en. 10.3847/1538-3881/aae5fa. 1811.00041. 2018AJ....156..233D. 119391307 . free .
  3. Web site: Your NED Search Results. ned.ipac.caltech.edu. 2019-08-02.
  4. Web site: New General Catalog Objects: NGC 4300 - 4349. cseligman.com. 2019-08-02.
  5. Binggeli. B.. Sandage. A.. Tammann. G. A.. 1985-09-01. Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area.. The Astronomical Journal. 90. 1681–1759. 10.1086/113874. 1985AJ.....90.1681B. 0004-6256.
  6. Web site: NGC 4305 - SA(s)a. The De Vaucouleurs Atlas of Galaxies. 2019-08-09.
  7. van den Bergh. Sidney. Pierce. Michael J.. Tully. R. Brent. 1990-08-01. Classification of galaxies on CCD frames. The Astrophysical Journal. 359. 4–14. 10.1086/169027. 1990ApJ...359....4V. 0004-637X.
  8. Book: Malin, D.. Astronomy from Wide-Field Imaging . Interacting Galaxies in the Virgo Cluster . 1994. 161. 567–576. 10.1007/978-94-011-1146-1_119. 1994IAUS..161..567M. 978-0-7923-2879-7. 118943109 .
  9. Sanchis. T.. Mamon. G. A.. Salvador-Sol´e. E.. Solanes. J. M.. 2004-05-01. The origin of H I-deficiency in galaxies on the outskirts of the Virgo cluster. II. Companions and uncertainties in distances and deficiencies. Astronomy and Astrophysics. 418. 2 . 393–411. 10.1051/0004-6361:20034158. astro-ph/0401367. 2004A&A...418..393S. 0004-6361. free.

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