NGC 7549

NGC 7549 is a peculiar barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 4,373±26 km/s, which corresponds to a Hubble distance of 210.4 ± 14.8 Mly (64.50 ± 4.53 Mpc).^[1] However, five non-redshift measurements give a closer mean distance of 187.41 ± 14.74 Mly (57.460 ± 4.518 Mpc).^[2] It was discovered by Irish engineer Bindon Stoney on 2 November 1850.^[3]

ConstellationPegasus

Right ascension23^h 15^m 17.2735^s[1]

Declination+19° 02′ 30.087″^[1]

Redshift0.015798±0.00001^[1]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 7549
NGC 7549 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Pegasus
Right ascension	23h 15m 17.2735s[1]
Declination	+19° 02′ 30.087″[1]
Redshift	0.015798±0.00001[1]
Heliocentric radial velocity	4,736±3 km/s[1]
Distance	187.41 ± 14.74 Mly (57.460 ± 4.518 Mpc)[1]
Group or cluster	Arp 99, HCG 93
Apparent magnitude (V)	13.74[1]
Characteristics
Type	SB(s)cd pec[1]
Size	~160,900 ly (49.34 kpc) (estimated)[1]
Apparent size (V)	2.8′ × 0.7′[1]
Other designations
HCG 93b, IRAS 23127+1846, Arp 99 NED03, UGC 12457, MCG +03-59-014, PGC 70832, CGCG 454-013[1]

Close

NGC 7549 has an active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.^[1]