NGC 2613
Spiral galaxy in the constellation Pyxis / From Wikipedia, the free encyclopedia
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]
NGC 2613 | |
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Observation data (J2000 epoch) | |
Constellation | Pyxis |
Right ascension | 08h 33m 22.841s[1] |
Declination | −22° 58′ 25.21″[1] |
Redshift | 0.005591[2] |
Heliocentric radial velocity | 1,675 km/s[3] |
Distance | 78 Mly (24 Mpc)[3] |
Apparent magnitude (V) | 11.6[2] |
Characteristics | |
Type | SA(s)b[4] |
Mass | (7.50±0.87)×1011 M☉.[5] M☉ |
Apparent size (V) | 7′.59 × 1′.70[6] |
Notable features | Edge-on galaxy |
Other designations | |
IRAS 08311-2248, MCG-04-21-003, UGCA 141, PGC 23997[7] |
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]