The trials, tribulations and small triumphs of a Charlotte, NC astronomer imaging under Bortle 8/9 skies.
Tuesday, October 4, 2011
M92
Single exposure image of M92, globular cluster in Hercules. Nikon D40, 14 inch LX200 ACF. Globular clusters are made of old stars. Their is no associated nebulosity as it has nearly all been used to form the stars in the cluster. Ols stars like this are called, "metal rich." Although their are atoms of metal elements in these stars (and metals accumulate as stars age), the term is misleading. In astrophysics, anything that is not hydrogen or helium is classed as a metal.
Subscribe to:
Post Comments (Atom)
The Tulip Nebula—Hubble Palette
This image is just over 3 hours of integration on the Tulip Nebula. The image was stacked with star processing, initial histogram stretch, a...

-
I had a couple of emails asking how to defork an ETX telescope. The ETX 90 and ETX 125 were optically superb scopes, but the mounts left a...
-
The ZEQ25 doing its stuff on a cold night--imaging the Orion Nebula with an 8 inch f/4 astrograph. Note the lovely Christmas rug :) As ...
-
Like the Ring Nebula, the Dumbbell nebula is a planetary nebula marking the end of a star's life as it puffs off its outer layers into s...
No comments:
Post a Comment