NGC 1570

NGC 1570, mistakenly called NGC 1571, is a faint galaxy located in the southern constellation Caelum, the chisel. It has a blue magnitude of 13.2,^[4] making it visible through a medium sized telescope. Based on a redshift of z = 0.014760,^[2] the object is estimated to be 198 million light years (60.9 megaparsecs) away from the Local Group.^[3] It appears to be receding with a heliocentric radial velocity of 4,392 km/s.^[2]

NGC 1570
A legacy surveys image of NGC 1570.
Observation data (J2000.0 epoch)
Constellation	Caelum
Right ascension	04h 22m 08.93282s[1]
Declination	−43° 37′ 46.4517″[1]
Redshift	0.014760[2]
Heliocentric radial velocity	4,392±84 km/s[2]
Distance	199 Mly (60.9 Mpc)[3]
Group or cluster	LDC 302[3]
Apparent magnitude (B)	13.22[4]
Characteristics
Type	S0[5]
Mass	297±149 (black hole)[6] M☉
Size	108,000 ly (33,113 pc)[7]
Apparent size (V)	1.037′ × 0.809′[8]
Other designations
NGC 1571, LEDA 14971, PGC 14971

NGC 1570 has a galaxy morphological classification of S0,^[5] indicating that it is a lenticular galaxy. It has also been catalogued as a peculiar elliptical galaxy. The central black hole has a mass 297 times that of the Sun.^[9] It is estimated to be 8.9 billion years old, younger than the Milky Way. The average iron abundance of the galaxy is 135% that of the Sun's. NGC 1570 is said to be round in shape, making it more likely to be an elliptical galaxy.^[10]

The galaxy was first discovered by Sir John Herschel in November 1835. A month later, he observed NGC 1570 again and mistakenly called it NGC 1571 due to imprecise coordinates. NGC 1570 is part of a small galaxy group called LDC 302.^[3] It is the brightest member.