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Re: (IAAC) RE: Partial Listing of Asterisms and Some Comments
Andrew James wrote:
snip
> 2.) Asterisms (Sub-Constellations)
>
> This third list are naked-eye or binocular asterisms that are parts of a
> larger constellation or constellations. Most are visible to the
> naked-eye, or are obvious in binoculars or a small telescope, and
> subtend an angle of greater than about a degree.
>
> This list below is far from exhaustive;
>
> Alpha Persei Cluster
> 032419.0+495142;
> Perseus; Mel 20 Cr39; Stars around Alpha Persei; d=184' 50 stars
>
> Andromeda Galaxy
> 04246+4116; Andromeda; M31/NGC 224; Andromeda Galaxy
>
snip
> Coalsack/Black Magellanic Cloud
> 12 53:-53 00; Crux/Musca/Centaurus
>
snip
> Large Magellanic Cloud/ Nubecula Major/ LMC
> 1223:-6930; LMC; 4.7Ox4.1O
snip
M31, M33, M44, M45, NGC objects, the LMC, and the SMC are asterisms? These are true star
clusters and galaxies. And the Coalsack, a dark nebula (no stars involved whatsoever), no
less! The definition of asterism needs to be changed if these objects are now considered to be
asterisms.
Dave Mitsky
ASH, DVAA
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