NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC869
Basic Information
Location and Magnitude
Right Ascension: 2:19:4.0
Declination: +57:8:6
Constellation: PER
Visual Magnitude: 5.3
Historic Information
Discoverer: Hipparchus
Year of discovery: -130
Discovery aperture:
Observational
Summary description: ! Cl, vvL, vRi, st 7…14
Sub-type: I3r
Steve's Notes
=====
NGC 869
17.5" (10/25/97): this is the brighter and richer western member of the famous "double cluster". Includes a mag 6.6 star near the center and a mag 6.7 star 2.5' NNE. Close following the mag 6.6 star is a neat parabolic group of five stars opening towards the star. On the west side of this star is a rich group of ~20 stars mostly arranged in an incomplete ring. A faint curving string of stars from the mag 6.7 star leads to the parabolic quintet. The 20' field at 220x has too many stars to count, but probably has ~200 stars.
8": this is the western component of the "double cluster". Very bright, large, about 30' diameter. Very rich with about 100 stars resolved, includes several bright mag 6.5-7.0 stars in the center. Forms a pair with NGC 884 at edge of 100x field.
Naked-eye (11/13/07): I noticed that the Double Cluster was clearly resolved into two "clumps" naked-eye.