Heinrich d'Arrest discovered NGC 133 on 4 Feb 1865 with an 11" refractor at Copenhagen and recorded (single observation) a "double star in a group of scattered stars, mag 10 and fainter. Found while observing h28 [NGC 146]. The double star is mag 10 and 11 at a separation of 6"." His position and description matches this weak cluster.

200/250mm - 8" (8/16/82): group of 8 stars in "Y" asterism, in field with open cluster NGC 146 and King 14.

400/500mm - 17.5" (10/13/90): about 15 stars including 5 brighter stars forming a "Y" asterism and 10 faint stars. One of the brightest stars is a very close double star (9.7/11.3 at 6") and a curving lane of very faint stars passes through this double star, not rich. This is the poorest of three clusters just north of Kappa Cassiopeia.

Notes by Steve Gottlieb