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RA: 00h 52m 49s
Dec: +56° 37′ 42″
Ch: MSA:65, U2:36, SA:1
Ref: NGC/IC, DAML02, Corwin, Archinal&Hynes (2003)
Type: open cluster, n
Mag: B=?, V=7.4
IC 1590 is a star cluster involved in NGC 281 = IC 11. Bigourdan says of it, "In the region of NGC 281, there is in addition to the nebulosity suspected near BD +55 191, a large number of stars forming a very large cluster, without concentration." He gives no position in his big tables, but does have one in his tables of new objects, and in the CR article from which Dreyer took the IC position. That position is about 3 arcmin southeast of the center of a group of stars that Brian Skiff and I independently chose as IC 1590. I make the diameters 6 arcmin by 4 arcmin, so am not convinced that this is Bigourdan's object.
Without better evidence from Bigourdan's published material, though, there is not much point in trying too hard to find this object. It sits in the middle of a large region of star formation, and any position we take in the area will get us some hot, young stars.
This combination star cluster and nebula lies 1.7 degrees east of Alpha Cassiopeiae. Discovered by Barnard with a 6" refractor, he described it as faint, very large and diffused, with a small triple star on the north-preceding edge. This is the 7th magnitude multiple star Burnham 1, also called ADS 719. The star cluster, IC 1590 (also known as Collinder 8) is sparse, and about 4' across with an integrated magnitude of 7. With a 6" reflector at 95x, occassional glimmers of scattered faint stars are seen, and also what seems like a little extra light among them. The latter may be the nebula NGC 281, a great mottled cloud of glowing hydrogen. According to Webb's, the sky around Burnham 1, as seen with a 8", is "clearly bright", and in a 16" the nebula is a "large, easy object"
The Messier objects
The Bennett objects
The Caldwell list
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