NGC 7789 VIC 3
Cas
☀6.7mag
Ø 15'
Photo Synthetic

NGC 1027 is an open cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787. It is visible at the eastern part of the constellation, between two emission nebulae, the Heart and Soul Nebula. However, it is not physically associated with the two nebulae, lying in the foreground, about 3,000 light years away from the Solar System. The apparent magnitude of the cluster is 6.7 and can be seen with 10x50 binoculars around a 7th magnitude star, which is not however a member of the cluster. The brightest member of the cluster has an apparent magnitude of 9,3.

200/250mm - 8" includes a dozen stars mag 8 to 12.5. Fairly small, rich, over unresolved background haze.

400/500mm - 17.5" (11/27/92): 90 stars in 15' diameter, fairly scattered but still a striking cluster. Surrounds mag 7.0 SAO 12402 and includes about 15 mag 10-11 stars and many mag 13-14 stars. A number of the stars are arranged in spiraling rays emanating from the dominant star. The cluster is composed of a mixture of bright and faint stars.