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NGC 1317 (also known as NGC 1318) is a barred spiral galaxy in the constellation Fornax, in the Fornax cluster. It was discovered by Julius Schmidt on January 19, 1865. It appears to be interacting with the much larger NGC 1316, but uncertainty in distance estimates and scales of tidal distortions make this uncertain. It is a member of the NGC 1316 subgroup, part of the Fornax Cluster. Its size is 2.8' x 2.4' which, at the average distance, gives a diameter of 55,000 light-years.

NGC 1317
The contrasting galaxies NGC 1316 and 1317
Observation data (J2000 epoch)
ConstellationFornax
Right ascension03h 38.5m [1]
Declination−35° 27′[1]
Distancefrom 17 megaparsecs (55 Mly)
to 26.9 megaparsecs (88 Mly)
Apparent magnitude (V)11.0[1]
Characteristics
TypeSBa[1]
Apparent size (V)2.8′ × 2.4′[1] (55,000 light-years in diameter)
Notable featuresLarge uncertain of distance
Other designations
ESO 357-23, IRAS 03208-3716, MCG -6-8-6, NGC 1318 and PGC 12653

Distance estimates


NGC 1317's central region by HST
NGC 1317's central region by HST

NGC 1317 has an uncertain distance. Based on redshift, the distance is 55.1 million light-years, but some other methods estimate a distance as large as 88.4 million light-years. The distance of this galaxy is therefore somewhere between 55 and 88 Mly, but its true distance is unknown.[2] The average distance between the two estimates is around 70 million light-years, which means NGC 1317 is also in the Fornax Cluster.


References


  1. Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 978-0-00-717223-8.
  2. https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+1317&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES



На других языках

[de] NGC 1317

NGC 1317 = NGC 1318 (auch Fornax B) ist eine Balken-Spiralgalaxie vom Hubble-Typ SBa[2] im Sternbild Fornax am Südsternhimmel. Sie ist schätzungsweise 82 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Scheibendurchmesser von etwa 70.000 Lj. Gemeinsam mit NGC 1316 bildet sie ein gravitativ gebundenes Galaxienpaar. Unter der Katalogbezeichnung FCC 22 ist sie als Mitglied des Fornax-Galaxienhaufens gelistet. In derselben Himmelsregion befinden sich u. a. die Galaxien NGC 1310 und NGC 1326.
- [en] NGC 1317

[ru] NGC 1317

NGC 1317 (другие обозначения — NGC 1318, ESO 357-23, MCG −6-8-6, FCC 22, IRAS03208-3716, PGC 12653) — спиральная галактика с перемычкой (SBa) в созвездии Печь.


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