LEDA 74886

LEDA 74886, also known by its 2MASX designation 2MASX J03404323-1838431, and sometimes known as the Emerald-cut Galaxy, is a dwarf galaxy with a rare rectangular shape. It is located at a distance of about 70000000 ly in the Eridanus constellation. The galaxy was detected in a wide field of view image taken by the Subaru Telescope using the Subaru Prime Focus Camera (Suprime-Cam). 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. LEDA 74886 has a mass of around 109 M ☉ (Compared to the Milky Way's mass of about 1012  M ☉).

Location
LEDA 74886 is located in the celestial sphere at a right ascension ($$\alpha$$) of 03:40:43.2, and a declination ($$\delta$$) 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.