NGC 3741 | |
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Hubble Space Telescope image of NGC 3741 | |
Observation data ( J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 11h 36m 05s [1] |
Declination | +45° 17′ 02″ [1] |
Redshift | 0.000764 [2] |
Heliocentric radial velocity | 229 ± 4 km/s [2] |
Distance | 10 Mly (3.2 Mpc) [3] |
Apparent magnitude (V) | 14.23 [1] |
Apparent magnitude (B) | 14.55 [1] |
Characteristics | |
Type | ImIII/BCD [2] |
Other designations | |
NGC 3741, UGC 6572, MCG +08-21-068, PGC 35878, SDSS J113605.75+451702.9 [1] |
NGC 3741 is an irregular galaxy in the constellation Ursa Major. It was discovered by John Herschel on March 19, 1828. [4] At a distance of about 10 million light-years (3.2 Mpc), it is located in the M94 Group. [3] It is relatively undisturbed by other galaxies. [3]
NGC 3741 is an unusual galaxy in several aspects. It has a disk of neutral hydrogen (H I) that is extremely wide, extending some 23,000 light-years (7 kpc). The disk is strongly but symmetrically warped. [5] With a mass-to-light ratio of MT/LB ~ 149, it is highly rich in dark matter. [6]
NGC 3741 has a central bar and a faint spiral arm rich in H I. The bar rotates slowly, likely due to interaction with the dark matter. [7] The bar and spiral arms would make NGC 3741 a low-luminosity spiral galaxy. [3] The unusual properties could be explained if NGC 3741 were a late-stage merger between a low-mass companion or if it accreted mass from the intergalactic medium. [3]
NGC 3741 | |
---|---|
![]()
Hubble Space Telescope image of NGC 3741 | |
Observation data ( J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 11h 36m 05s [1] |
Declination | +45° 17′ 02″ [1] |
Redshift | 0.000764 [2] |
Heliocentric radial velocity | 229 ± 4 km/s [2] |
Distance | 10 Mly (3.2 Mpc) [3] |
Apparent magnitude (V) | 14.23 [1] |
Apparent magnitude (B) | 14.55 [1] |
Characteristics | |
Type | ImIII/BCD [2] |
Other designations | |
NGC 3741, UGC 6572, MCG +08-21-068, PGC 35878, SDSS J113605.75+451702.9 [1] |
NGC 3741 is an irregular galaxy in the constellation Ursa Major. It was discovered by John Herschel on March 19, 1828. [4] At a distance of about 10 million light-years (3.2 Mpc), it is located in the M94 Group. [3] It is relatively undisturbed by other galaxies. [3]
NGC 3741 is an unusual galaxy in several aspects. It has a disk of neutral hydrogen (H I) that is extremely wide, extending some 23,000 light-years (7 kpc). The disk is strongly but symmetrically warped. [5] With a mass-to-light ratio of MT/LB ~ 149, it is highly rich in dark matter. [6]
NGC 3741 has a central bar and a faint spiral arm rich in H I. The bar rotates slowly, likely due to interaction with the dark matter. [7] The bar and spiral arms would make NGC 3741 a low-luminosity spiral galaxy. [3] The unusual properties could be explained if NGC 3741 were a late-stage merger between a low-mass companion or if it accreted mass from the intergalactic medium. [3]