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NGC 1087 is an intermediate spiral galaxy in Cetus. The central bar/core is very small with many irregular features in the surrounding disk of material. With the many strange features of NGC 1087, its true nature is still uncertain. It has an extremely small nucleus and a very short stellar bar. Unlike most barred galaxies, the bar apparently has some new star-formation taking place. There is a multiple spiral structure defined more by the dust lanes than by luminous matter. Overall, the disc has a very low surface brightness. Even though it appears close to another galaxy (NGC 1090), these two galaxies are not interacting and should be considered isolated from one another.

NGC 1087
NGC 1087 as seen by SDSS
Observation data (J2000 epoch)
ConstellationCetus
Right ascension02h 46m 25.2s[1]
Declination−00° 29′ 55″[1]
Redshift1517 ± 4 km/s[1]
Distance80 Mly (25 Mpc)[2]
Apparent magnitude (V)12.2g[1]
Characteristics
TypeSAB(rs)c[1]
Apparent size (V)3′.12 × 1′.50[1]
Other designations
UGC 2245,[1] PGC 10496[1]

NGC 1087 lies near the small M77 (NGC 1068) galaxy group that also includes NGC 936, NGC 1055, and NGC 1090. However, because of its distance, it probably is not an actual group member.

Based on the published red shift, (Hubble Constant of 62 km/s per Mpc) a rough distance estimate for NGC 1087 is 80 million light-years, with a diameter of about 86,800 light-years. The type II supernova SN 1995V is the only recorded supernova in NGC 1087.[3]


References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 1087. Retrieved 2006-11-27.
  2. Thompson, Jeff & Block, Adam (2001). "NGC 1087". Retrieved Dec. 27, 2006
  3. "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Archived from the original on 11 August 2015. Retrieved 11 July 2015.



На других языках

[de] NGC 1087

NGC 1087 ist eine Balken-Spiralgalaxie mit hoher Sternentstehungsrate vom Hubble-Typ SBc im Sternbild Walfisch südlich der Ekliptik. Sie ist rund 68 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 80.000 Lichtjahren. Das Objekt ist ein enger Nachbar von Messier 77, physisch gehören sie derselben Galaxiengruppe an.[3]
- [en] NGC 1087

[es] NGC 1087

NGC 1087 es una galaxia espiral intermedia de tipo SAB(rs)c que se encuentra en la constelación de Cetus un grado al sureste de M77. Se encuentra a unos 80 millones de años luz de distancia de la Tierra. Su magnitud aparente es 12,2.

[ru] NGC 1087

NGC 1087 (другие обозначения — UGC 2245, MCG 0-8-9, ZWG 389.10, KUG 0243-007, IRAS02438-0042, PGC 10496) — спиральная галактика с перемычкой (SBc) в созвездии Кит.


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