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Cl Melotte 111 (9,228 of 18,816)

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Coma Star Cluster

Cl Melotte 111, Cl Collinder 256, C 1222+263, Ocl 558.0, COCD 308, Coma Berenices Cluster, Coma Star Cluster

RA: 12h 22m 30s
Dec: +25° 51′ 0″

Con: Coma Berenices
Ch: MSA:677, U2:148, SA:7

Ref: SIMBAD, DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 33r

Mag: B=?, V=?

Size: 120′
PA: ?

Published comments

Melotte, P.J. (1915)

A catalogue of star clusters shown on Franklin-Adams chart plates. Mem.R.A.S., 60(5), 175-186.

The large extended cluster in Coma Berenices. Appears to extend over an area six deg square.

Brian Skiff

Mel 111 = Coma Berenices cluster

8x40mm - lg grp of mod br *s filling about 1/2 of binoc fld. sketch in logbook. BS, 14Dec1969, FtL.

Photo index

Photo index by Jim Lucyk: Sky & Tel. 9/70 p144, Astronomy mag. 6/75 p73, Burnhams V2 p669

Modern observations

Walter Scott Houston

Houston writes: "What open cluster is visible to the naked eye, has no Messier or NGC number, and was called 'gossamers spangled with dewdrops' by the 19th century astronomy popularizer Garret P. Servoss? Almost every sky gazer has seen this group at one time or another ... The answer will surprise many, for the cluster is the shimmering haze of 5th and 6th mag stars we call Coma Berenices. It is a real cluster and not just a chance alignment of stars. There are about 80 members scattered across 5 degrees of sky."

Donald J. Ware

Donald J. Ware: "Is actually not cataloged in either the NGC or Messier list, but it is the best known of the star clusters, it lies between Alpha Canum and Beta Leonis, covering an area of about 5 degrees in diameter. This is one of the closest of all known star clusters at 250 light years."

Tom Lorenzin

Coma Star Cloud; in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "6 degree diameter! 80-plus 5 thru 7M members; use binoculars for best view, but it's a not-too-shabby naked-eye treat, as well!."

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