Re: [skychart-discussion] Deep Sky Objects with Designation Beginning With "Cr" and "Mel"

[William Hamblen]

Mel is short for Melotte's catalog of star clusters.

Cr is short for Collinder's catalog of star clusters.

Bud

growler3 wrote:
> Will someone please tell me what the deep sky object groups that are 
> designated "Cr" and "Mel". Thanks. Bob Harris
>