LEDA 74886 | |
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![]() False color image of galaxy LEDA 74886, taken by the
Subaru Telescope. The contrast of this image has been adjusted to highlight the internal disk/bar like structure. | |
Observation data ( J2000 epoch) | |
Constellation | Eridanus |
Right ascension | 03h 40m 43.233s [1] |
Declination | −18° 38′ 43.10″ [1] |
Distance | 70,000
kly (21,000
kpc) h−1 0.73 |
Group or cluster | NGC 1407 [2] |
Characteristics | |
Type | S0 [3] |
Mass | 1×109 M☉ |
Other designations | |
2MASX J03404323-1838431, 6dFGS gJ034043.2-183843 [1] |
LEDA 74886, also known by its 2MASX designation 2MASX J03404323-1838431, and sometimes known as the Emerald-cut Galaxy, [4] is a dwarf galaxy with a rare rectangular shape. [2] It is located at a distance of about 70,000,000 light-years (21 Mpc) in the Eridanus constellation. [5] The galaxy was detected in a wide field of view image taken by the Subaru Telescope using the Subaru Prime Focus Camera (Suprime-Cam). [6] [7] Using the Keck Telescope, a thin disc with a side on orientation was confirmed to be lurking at the center of LEDA 74886, and spinning at a speed of 33 km/s at the orbital radius of half a kpc. [2] LEDA 74886 has a mass of around 109 M☉ (Compared to the Milky Way's mass of about 1012 M☉).
LEDA 74886 is located in the celestial sphere at a right ascension () of 03h 40m 43.2s, and a declination () of −18° 38′ 43″ ( J2000). It is located within the Galactic corona of NGC 1407, a massive spherical galaxy which is located approximately 163,000 ly (50 kpc) to the northwest of LEDA 74886. [2]