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NGC 1559 is a barred spiral galaxy in the constellation Reticulum. It is also a Seyfert galaxy. Although it was originally thought to be a member of the Dorado Group,[2] subsequent observations have shown that it is in fact not a member of any galaxy group or cluster and does not have any nearby companions.[3][4] NGC 1559 has massive spiral arms and strong star formation.[3] It contains a small bar which is oriented nearly east-west and spans 40″.[3] Its bar and disc are the source of very strong radio emissions.[3]

NGC 1559
Observation data (J2000.0 epoch)
ConstellationReticulum
Right ascension4h 17m 35.8s[1]
Declination−62° 47′ 1″[1]
Redshift1304 ± 4 km/s[1]
Apparent magnitude (V)11[1]
Characteristics
TypeSB(s)cd[1]
Apparent size (V)3′.5 × 2′.0[1]
Other designations
PGC 14814[1]

In 2005, a Type 1a supernova, (SN 2005df) was observed. Two other supernovae discovered in NGC 1559 were SN 1984J and SN 1986L. All three were discovered by Australian amateur astronomer Robert Evans.[5]

Supernova SN 2005df is visible as the bright star just above the galaxy (imaged by ESO's 8.2m VLT)
Supernova SN 2005df is visible as the bright star just above the galaxy (imaged by ESO's 8.2m VLT)

References


  1. "NASA/IPAC Extragalactic Database", Results for NGC 4650A, retrieved 2007-04-03
  2. Huchra, J. P.; Geller, M. J. (June 15, 1982), "Groups of galaxies. I - Nearby groups", Astrophysical Journal, 257 (Part 1): 423–437, Bibcode:1982ApJ...257..423H, doi:10.1086/160000
  3. Beck, R.; Shoutenkov, V.; Ehle, M.; Harnett, J. I.; et al. (August 2002), "Magnetic fields in barred galaxies. I. The atlas", Astronomy and Astrophysics, 391 (1): 83–102, arXiv:astro-ph/0207201, Bibcode:2002A&A...391...83B, doi:10.1051/0004-6361:20020642
  4. Maia, M. A. G.; da Costa, L. N.; Latham, David W. (April 1989), "A catalog of southern groups of galaxies", Astrophysical Journal Supplement Series, 69: 809–829, Bibcode:1989ApJS...69..809M, doi:10.1086/191328, ISSN 0067-0049
  5. "Supernova Discoveries by Rev. Robert Evans". revivals.arkangles.com/. Archived from the original on 3 March 2016. Retrieved 11 July 2015.


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[de] NGC 1559

NGC 1559 ist eine Balken-Spiralgalaxie mit aktivem Galaxienkern vom Hubble-Typ SBc im Sternbild Reticulum am Südsternhimmel. Sie ist schätzungsweise 50 Mio. Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 55.000 Lj.
- [en] NGC 1559

[ru] NGC 1559

NGC 1559 (другие обозначения — ESO 84-10, AM 0417-625, PGC 14814) — спиральная галактика с перемычкой (SBc) в созвездии Сетка.


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