NGC 2859 | |
---|---|
![]() NGC 2859 imaged by the Hubble Space Telescope | |
Observation data (J2000 epoch) | |
Constellation | Leo Minor |
Right ascension | 09h 24m 18.549s[1] |
Declination | +34° 30′ 48.16″[1] |
Redshift | 1687 ± 8 km/s[2] |
Distance | 82.8 Mly (25.4 Mpc)[3] |
Apparent magnitude (V) | 11.8[2] |
Characteristics | |
Type | (R)SB(r)0+[4] |
Apparent size (V) | 4′.3 × 3′.8[2] |
Notable features | Double barred |
Other designations | |
UGC 5001, PGC 26649[2] |
NGC 2859 is a barred lenticular galaxy located some 83[3] million light years away in the constellation Leo Minor. The morphological classification is (R)SB(r)0+,[4] where the S0+ notation indicates a well-defined physical structure that is lacking in visible spiral arms. It has a strong bar (B) of the "ansae" type, which means it grows brighter or wider toward the tips. A faint, secondary bar is positioned at nearly a right angle to the main bar. These features are surrounded by a weak inner ring (r) that appears diffuse. The outer region of the galaxy hosts a prominent, detached ring (R) that includes a series of blue-hued knots along the eastern side.[4]
The central supermassive black hole is an estimated 105 million times the mass of the Sun. The nucleus is tentatively classified as a transition type T2:,[3] with no indication of activity.[5]
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