| NGC 3751 | |
| Constellation Name: | Leo |
| Ra: | 11h 37m 53.859s |
| Dec: | +21d 56m 11.34s |
| Z: | 0.031328 |
| H Radial V: | 9,392 km/s |
| Dist Ly: | 450 Mly (138 Mpc) |
| Group Cluster: | Copeland Septet |
| Appmag V: | 14.3 |
| Type: | E4, E-S0 |
| Size: | 144,000 ly |
| Names: | PGC 36017, UGC 6601, MCG +04-28-009, 2MASX J11375386+2156110, SDSS J113753.85+215611.3, Copeland Septet NED05, HCG 057F, NSA 112845, SSTSL2 J113753.87+215611.2, LEDA 36017 |
| Epoch: | J2000 |
NGC 3751 is a type E-S0[1] lenticular galaxy located in the Leo constellation.[2] It is located 450 million light-years away from the Solar System[3] and was discovered by Ralph Copeland on April 5, 1874.[4]
To date, a non-redshift measurement gives a distance of approximately 138,000 Mpc (450 million light-years) for NGC 3751. This value is within the Hubble Distance values.[5]
NGC 3751 is a member of the Copeland Septet.[6] The other members are NGC 3745, NGC 3746, NGC 3748, NGC 3750, NGC 3753 and NGC 3754.[7]
Halton Arp noticed the 7 galaxies in which he published inside his article in 1966.[8] This group is known as Arp 320 in which another galaxy, PGC 36010 is part of it.[9]
This group was also observed by Paul Hickson, in which he included them inside his article which was published in 1982.[10] It is noted that this group is designated as Hickson 57. NGC 3751 is known as HCG 57F.[11]