NGC 5920

NGC 5920
Observation data (J2000 epoch)
Constellation	Serpens
Right ascension	15h 21m 51.85s
Declination	+07d 42m 31.75s
Redshift	0.04419
Heliocentric radial velocity	13,584 km/s
Distance	712 Mly (218.3 Mpc)
Group or cluster	MKW 3
Apparent magnitude (V)	13.6
Apparent magnitude (B)	14.7
Characteristics
Type	Radio galaxy, BCG
Size	300,000 ly
Other designations
PGC 54839, UGC 9822, 4C 07.41, Z 49-145, FIRST J152151.85+074231, PKS 1519+07, 3C 318.1

NGC 5920 is a large lenticular galaxy located in the Serpens constellation.^[1][2][3] Discovered on March 30, 1887, by American astronomer Lewis Swift,^[4] NGC 5920 is 711 million light-years distant from planet Earth.^[5] It is a narrow-line radio galaxy^[6] and about 300,000 light-years in diameter.

NGC 5920 has an active galactic nucleus. It presents a radio jet. In addition, it hosts a radio source in its core called 3C 318.1, indicating emissions of strong radio waves.^[7] NGC 5920 was studied by Chandra-MUSE, in which X-ray and optical filament analysis in clusters were carried out.^[8] The main purpose for this was to find the excitation process responsible for increased filament emission. The research was further improved by following the cold gas phase and through study of intensive ratios in emission lines that caused the excitation. Researchers found that, there was a spatial connection between the filaments that are cold and having lower metal abundance levels.^[8]

NGC 5920 is the brightest cluster galaxy of a small galaxy cluster which is known as MKW 3.^[9][10] Apart from it, another radio galaxy NGC 5919, is also located there.^[4]