May 052013
 
Globular Cluster M3

Here’s an image of M3, taken last night under very unstable (but quite transparent) skies.  The seeing was too poor for planetary work, but I didn’t want to let the clear skies go to waste.  

May 022012
 
I hate M5

Nope, not the BMW… the globular cluster.  I don’t know why I even bother with them when the seeing isn’t good, but I suppose since the word “globular” makes my wife giggle it’s worth the effort. Anyway, here’s M5 taken on a night of very (very!) poor atmospheric seeing.  It doesn’t have the glitter of […]

Jul 182011
 
M13 -- The Hercules Cluster

M13 is modestly recognized as the Great Globular Cluster in Hercules.  A system of stars numbering in the hundreds of thousands, it is one of the brightest globular star clusters in the northern sky.  At a distance of 25,000 light-years, the cluster stars crowd into a region 150 light-years in diameter, but approaching the cluster […]

Jun 102011
 
Globular Cluster M3

Messier 3 (also known as M3 or NGC 5272) is a globular cluster in the constellation Canes Venatici. It was discovered by Charles Messier in 1764, and resolved into stars by William Herschel around 1784. This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is located […]

Oct 232010
 
M71 -- The Globular Open Cluster?

M71 (NGC 6838) is a loose, colorful and interesting globular cluster in the constellation Sagitta… or at least that’s the current consensus among professional astronomers that study these sorts of things.  However you classify it, it’s a great photographic target due to the rich star field and opportunity to resolve many individual stars thanks to […]

Sep 152010
 
Globular Cluster -- M15

I’ve been playing with the DSLR and tuning the mount for deep sky photography, in preparation for the “planetary drought” we’ll go through after this apparition of Jupiter.  Saturn will be back at about the time that Jupiter is no longer adequately placed for imaging, but it will be closer to march before the most […]