NGC 4712

NGC 4712 is a spiral galaxy located in the constellation Coma Berenices. Its speed relative to the cosmic microwave background is 4,664 ± 20 km/s, which corresponds to a Hubble distance of 68.8 ± 4.8 Mpc. NGC 4712 was discovered by German-British astronomer John Herschel in 1832.
The luminosity class of NGC 4712 is II-III and it has a broad HI line. It also contains regions of ionized hydrogen.
To date, around ten measurements not based on redshift give a distance of 63.640 ± 16.932 Mpc, which is within the distance values of Hubble. Note, however, that it is with the average value of independent measurements, when they exist, that the NASA/IPAC [Extragalactic Database|NASA/IPAC database] calculates the diameter of a galaxy and that consequently the diameter of NGC 4712 could be approximately 51.4 kpc if we used the Hubble distance to calculate it.
According to Vaucouleur and Harold Corwin, NGC 4712 and NGC 4725 form a pair of galaxies. However, like several others mentioned in this article, these two galaxies are not an actual pair, because NGC 4725's radial velocity is 1,209 ± 1 km/s and is therefore much closer to the Milky Way. It is therefore an optical pair.