NGC 5416

ConstellationBoötes

Right ascension14^h 02^m 11.3153^s[1]

Declination+09° 26′ 24.350″^[1]

Redshift0.020811±0.00000900^[1]

NGC 5416
Observation data (J2000 epoch)
Constellation	Boötes
Right ascension	14h 02m 11.3153s[1]
Declination	+09° 26′ 24.350″[1]
Redshift	0.020811±0.00000900[1]
Distance	261.42 ± 8.13 Mly (80.152 ± 2.492 Mpc)[1]
Apparent magnitude (B)	13.6[1]
Surface brightness	22.79 mag/arcsec^2
Characteristics
Type	Scd[1]
Size	~114,100 ly (34.97 kpc) (estimated)[1]
Apparent size (V)	1.37′ × 0.75′[1]
Other designations
IRAS 13597+0940, UGC 8944, MCG +02-36-014, PGC 49991, CGCG 074-052

NGC 5416 is a spiral galaxy and radio galaxy^[2] located in the constellation Boötes. Its speed relative to the cosmic microwave background is 6,499 ± 18 km/s, which corresponds to a Hubble distance of 95.9 ± 6.7 Mpc (~313 million ly).^[1] NGC 5416 was discovered by German-British astronomer William Herschel on 19 March 1784.^[3]

The luminosity class of NGC 5416 is III-IV and it has a broad HI line.^[1] According to the SIMBAD database, NGC 5416 is a radio galaxy.^[2]

To date, 25 non-redshift measurements yield a distance of 80.152 ± 2.492 Mpc (~261 million ly),^[4] which is within the Hubble distance values. Note that it is with the average value of independent measurements, when they exist, that the NASA/IPAC database calculates the diameter of a galaxy and that consequently the diameter of NGC 5416 could be approximately 41.8 kpc (~136,000 ly) if we used the Hubble distance to calculate it.^[5]