NGC 1545

NGC 1545 is an open cluster in the constellation Perseus. It was discovered by William Herschel on December 28, 1790.^[3] It is located in the north-eastern part of the constellation, a few arcminutes east of the 4.5 magnitude star b Persei, near the equally large and bright NGC 1528 (m = 6.4), which is less than 1.5° towards the northwest. However, it is less dense and rich. The brightest star of the cluster is a K5 III giant star, with 7.1 magnitude, but its membership is questionable. One more 7.9 magnitude star is visible at the north edge of the cluster.^[4]

NGC 1545
NGC 1545
Observation data (J2000 epoch)
Right ascension	04h 20m 50s[1]
Declination	+50° 15′ 12″[1]
Distance	2,320 ly (711 pc[2])
Apparent magnitude (V)	6.4 [1]
Apparent dimensions (V)	23'
Physical characteristics
Estimated age	280 millions years
Other designations	Cr 49
Associations
Constellation	Perseus
See also: Open cluster, List of open clusters