NGC 7047 is an intermediate spiral galaxy located about 270 million light-years away in the constellation of Aquarius.[2][3] NGC 7047 is also classified as a LINER-type galaxy.[4] NGC 7047 has an estimated diameter of 127,350 light years.[3] It was discovered by French astronomer Édouard Stephan on August 20, 1873.[5]

One supernova has been observed in NGC 7047: PTF09cjq (type II, mag. unknown) was discovered 22 October 2009 by the Palomar Transient Factory.[6][7][8]

See also

References

  1. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 7047. Retrieved 2017-06-29.
  2. ^ Rojas, Sebastián García. "Galaxy NGC 7047 - Galaxy in Aquarius Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-06-29.
  3. ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-06-29.
  4. ^ "NGC 7047". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-29.
  5. ^ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-06-27.
  6. ^ "WISeREP page for PTF09cjq". Weizmann Interactive Supernova Data Repository. Weizmann Institute of Science. Retrieved 29 August 2024.
  7. ^ "Bright Supernovae - 2009". rochesterastronomy.org. Retrieved 2017-06-29.
  8. ^ Arcavi, Iair; Gal-Yam, Avishay (2010). "Core-Collapse Supernovae from the Palomar Transient Factory: Indications for a Different Population in Dwarf Galaxies". The Astrophysical Journal. 721 (1): 777–784. arXiv:1004.0615. Bibcode:2010ApJ...721..777A. doi:10.1088/0004-637x/721/1/777. Retrieved 28 August 2024.
Allikas: https://en.wikipedia.org/wiki/NGC_7047
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