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NGC 4707 is an irregular galaxy in the constellation of Canes Venatici. It was discovered by John Herschel on 5 June 1834,[4] and was described by John Louis Emil Dreyer, the compiler of the New General Catalogue, as a "small, stellar" galaxy.[5]

NGC 4707
NGC 4707, imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension12h 48m 21.666s[1]
Declination+51° 09 53.81[1]
Redshift0.001561[2]
Helio radial velocity468 km/s[2]
Distance22.11 ± 3.64 Mly (6.780 ± 1.116 Mpc)[2]
Apparent magnitude (V)12.91[2]
Apparent magnitude (B)15.2[3]
Absolute magnitude (V)-16.23[2]
Characteristics
TypeSm/Im[3]
Size16,100 ly (4,930 pc)[2]
Apparent size (V)1.120 × 1.045[3]
Other designations
UGC 7971, MCG+09-21-050, PGC 43255, DDO 150[3]

NGC 4707 has a morphological type of Sm or Im, meaning that it is mostly irregular or has very weak spiral arms.[3] The galaxy was imaged by the Hubble Space Telescope in 2016. The image showed the galaxy had little to no signs of a central bulge or any prominent structures (typical of Magellanic-type spirals). However, the telescope could resolve many stars, as well as several turquoise-colored star forming regions.[6]




References


  1. Adelman-McCarthy, J. K.; et al. (2009). "VizieR Online Data Catalog: The SDSS Photometric Catalog, Release 7". VizieR On-line Data Catalog. Bibcode:2009yCat.2294....0A.
  2. "NED results for object NGC 4707". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 20 February 2017.
  3. "NGC 4707". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 February 2017.
  4. Seligman, Courtney. "New General Catalogue objects: NGC 4700 - 4749". cseligman.com. Retrieved 20 February 2017.
  5. "NGC 4707 - SEDS". Retrieved 20 February 2017.
  6. "Astro-pointillism | ESA/Hubble". www.spacetelescope.org. 2016. Retrieved 20 February 2017.




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[de] NGC 4707

NGC 4707 ist eine spiralförmige Zwerggalaxie vom Hubble-Typ Sm im Sternbild Jagdhunde am Nordsternhimmel mit irregulärer Erscheinung der Spiralarme und ohne Bulge. Sie ist schätzungsweise 25 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 15.000 Lichtjahren.
- [en] NGC 4707

[ru] NGC 4707

NGC 4707 (другие обозначения — UGC 7971, MCG 9-21-50, DDO 150, ZWG 270.25, 1ZW 43, PGC 43255) — галактика в созвездии Гончие Псы.



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