47 Tucanae


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By
Catalog
Obj Type
Location
Date Taken:
Garrett
NGC 104
Star cluster
Moorook, Australia
07-15-2011
Description

47 Tucanae (NGC 104) or just 47 Tuc is a globular cluster located in the constellation Tucana. It is about 16,700 light years away from Earth, and 120 light years across. It can be seen with the naked eye, with a visual magnitude of 4.0. It's southern location hides it from European and American observers. The cluster appears roughly the size of the full moon in the sky under ideal conditions.
It is the second brightest globular cluster in the sky (after Omega Centauri), and is noted for having a very bright and dense core. It is also one of the most massive globular clusters in the Galaxy, containing millions of stars.

Technical Details
Exposure Time:
3 Hrs Lum
Camera:
SBIG STL-11000M
Telescope:
RCOS 16 inch f/8.7 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
© 2014 Garrett
Used with permission, No reproduction of these images are permitted without written approval from Garrett.