NGC 2613

NGC 2613
Observation data (J2000 epoch)
ConstellationPyxis
Right ascension08h 33m 22.841s[1]
Declination−22° 58′ 25.21″[1]
Redshift0.005591[2]
Heliocentric radial velocity1,675 km/s[3]
Distance78 Mly (24 Mpc)[3]
Apparent magnitude (V)11.6[2]
Characteristics
TypeSA(s)b[4]
Mass(7.50±0.87)×1011 M☉.[5] M☉
Apparent size (V)7′.59 × 1′.70[6]
Notable featuresEdge-on galaxy
Other designations
IRAS 08311-2248, MCG-04-21-003, UGCA 141, PGC 23997[7]

NGC 2613 is a spiral galaxy in the southern constellation of Pyxis, next to the western constellation border with Puppis. It was discovered by the German-born astronomer William Herschel on November 20, 1784.[8] With an apparent visual magnitude of 10.5, the galaxy is faintly visible using a telescope with a 100 mm (4 in) aperture. It appears spindle-shaped as it is almost edge-on to observers on Earth.[9]

The morphological classification of NGC 2613 is SA(s)b,[4] indicating a spiral galaxy with no bar or ring, and moderately tightly-wound spiral arms. It is inclined by an angle of approximately 79° to the line of sight from the Earth[5] and is oriented with the long axis along a position angle of 133°.[4] The radius of neutral hydrogen in the galaxy is about 35 kpc,[10] and the mass of the neutral hydrogen is (8.73±0.32)×109 M☉. The galaxy has a combined dynamic mass of (7.50±0.87)×1011 M☉.[5]

NGC 2613 has an active galactic nucleus that is deeply embedded in obscuring gas and dust.[5] Emission data collected by the Very Large Array shows a feature resembling a tidal tail along the southeast side of the galaxy, which was most likely produced by an interaction with the small companion galaxy, ESO 495-G017, now located to the northwest of NGC 2613.[10]

On 20 March 2023, a supernova was observed in NGC 2613: SN 2023dtc (Type Ib, mag. 18).[11]

  1. ^ a b Cite error: The named reference Skrutskie2006 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference ned was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Tully2016 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Chaves2001 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Li2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Paturel2003 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Seligman was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference OMeara2007 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Irwin2003 was invoked but never defined (see the help page).
  11. ^ Transient Name Server entry for SN 2023dtc. Retrieved 21 March 2023.