Basic object information

Object name: Abell 1656
Object type: Galaxy cluster

Catalog information

RA (J2000.0): 12h 59m 48.0s
Dec (J2000.0): +27 59' 00"

Constellation: Coma Berenices

Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 6/7.4.2005 0:05

Telescope: Newton 406/1830 mm

Magn: 215x


Field: 15'

NE Lim.mag: 6.6 (UMa)

Background sky: 3

Seeing: 3

Height: 55
Visuality: II-V
Weather: -2C

A very difficult field. There are several galaxies visible with direct vision and even more with averted vision. The brightest galaxy in the middle is a giant elliptical galaxy NGC 4874. In this sketch there are only nine stars sketched and the rest dots are faint galaxies, the most of them was stellar. I confirmed at least following galaxies in this field: IC 3955, IC 3973, IC 3976, IC 3998, IC 3998, NGC 4864, NGC 4867, NGC 4869, NGC 4871, NGC 4872, NGC 4873, NGC 4874, NGC 4875 and NGC 4876.