NGC 663
DSS image of NGC 663
Overlaid DSS image of NGC 663, 30' x 30' with north at top and west to the right

Aladin viewer for the region around NGC 663
H VI 31, GC 392, Melotte 11, Mel 11, Raab 7, Collinder 20, Cr 20, C 0142+610, Lund 55, OCl 333.0

Type  Open Cluster
Magnitude  7.1
Size  16'
Right Ascension  1h 46'  (2000)
Declination  61° 13' N
Constellation  Cassiopeia
Description  Cl, B, L, eRi, st pL
Classification  III 2 m
Observing Notes

Andrew Cooper
Jun 27, 2020    Waikoloa Quarry, HI (map)
8x42mm Nikon Prostaff 3S Binoculars @ 8x
Seeing: 7 Transparency: 7 Moon: 0%

An easy to find cluster about halfway and a bit SE between Segin and Ruchbah, small about 10' in diameter, a hazy clump in a rich galactic starfield

Andrew Cooper
Aug 19, 2017    Oregon Star Party, OR (map)
14.5" f/4.5 Starmaster @ 61x
Seeing: 7 Transparency: 7 Moon: 0%

Large, 10' across, bright, coarse, a conspicuous cluster in a rich Milky Way starfield, 2° east of Ruchbah, middle of a line of three clusters with NGC659 30' south and NGC654 30' northwest

Andrew Cooper
Sep 30, 2005    Gila, New Mexico (map)
90mm F/12 APO Violet Haze

A dense patch in a dense galactic star field, clearly visible in 9x63 binoculars, nice cluster dominated by about a dozen brighter stars with a faint mist of stars surrounding, NGC654 visible 40' north

Andrew Cooper
Dec 27, 2002    Sentinel, AZ (map)
46cm f/4.5 Deep Violet

Large, bright, rich, stands out well from the galactic background, about 100 members in a circular area, NGC659 at the edge of a low power field

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)
94mm f/18 Tully Achromat

Visible in finder; field very good, 64; 80 showed Sm.'s little pair, Σ153: 8.5, 9.7: 69°.2: 7".5, but not his ruby, 8 mg., '33.
― Celestial Objects for Common Telescopes, T. W. Webb, 1917

Captain William Henry Smyth
Sep 13, 1833    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A neat double star [SAO 11974 and V985 Cas], in a cluster near the Lady's right knee [NGC 663]; and it may be found by drawing a line from α through δ, and carrying it about 2½° further, A 9, and B 10½, both bluish. This object is in an elegant field of large and small stars, from a certain degree of brilliance down to infinitesimal points; but without any disposition to form, except that the larger members incline towards a parallelogram in which there are several coarse pairs. In the sp quadrant of this cluster, is a fine ruby star of the 8th magnitude [Two candidates about 4' apart with color indexes of 2.2, BD+60 327 mag 8.2 M0 or V589 Cas mag 8.9 M3].
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for NGC 663
Associated objects for NGC 663
Nearby objects for NGC 663
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

NGC 663