NGC 3647
Appearance
NGC 3647 | |
---|---|
Observation data | |
Constellation | Leo |
Redshift | 0.04985 0.00001 |
Heliocentric radial velocity | 14,573 km/s |
Distance | 747 Mly |
Apparent magnitude (V) | 15.6 |
Characteristics | |
Type | E |
Size | 72,000 ly |
Other designations | |
PGC 34816, 2MASX J11213813+0254119, Z 39-142, SDSS J112138+025411.4 |
NGC 3647 is a small elliptical galaxy in the Leo constellation.[1] The galaxy was first discovered on March 22, 1865 by Albert Marth who was a German astronomer.[2] It is approximately 747 million light-years away.[3] Due to its close proximity to five other elliptical galaxies, there was a bit of confusion for Marth to identify which object is NGC 3647.[2]
According to SIMBAD, it is identified as PGC 34816.[4] But in HyperLeda and by NASA/IPAC databases, NGC 3647 is identified as PGC 34815.[3] The correct designation for this article, according sources from wikidata is PGC 34816. There is no evidence whether this galaxy has an active nucleus or not.
References
[edit]- ^ "NGC 3647 - Elliptical Galaxy in Leo | TheSkyLive.com". theskylive.com. Retrieved 2024-04-16.
- ^ a b "New General Catalog Objects: NGC 3600 - 3649". cseligman.com. Retrieved 2024-04-16.
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-16.
- ^ "NGC 3647". simbad.u-strasbg.fr. Retrieved 2024-04-16.