Dear group,
The dwarf galaxy NGC 147 in Cassiopeia and member of the Local Group is one of approximately 60 galaxies for which (extragalactic) globular clusters have been detected. More specifically, NGC 147 has been found to contain four clusters dated to be approximately 9 billion years-old and ranging in magnitude from 16.98 to 21.10. They are appropriately named Hodge I to IV and after the principal author of the 1976 paper which described their properties.
For a result based on four hours total time and which includes these four extragalactic globular clusters, please see http://www.perseus.gr/Astro-DSO-NGC-0147-GCS.htm and remember to click on the hyperlinked image for the same result but with better scale.
Back in a few days with another member of the Local group but with eight member globular clusters.
Clear skies!
Anthony.
The dwarf galaxy NGC 147 in Cassiopeia and member of the Local Group is one of approximately 60 galaxies for which (extragalactic) globular clusters have been detected. More specifically, NGC 147 has been found to contain four clusters dated to be approximately 9 billion years-old and ranging in magnitude from 16.98 to 21.10. They are appropriately named Hodge I to IV and after the principal author of the 1976 paper which described their properties.
For a result based on four hours total time and which includes these four extragalactic globular clusters, please see http://www.perseus.gr/Astro-DSO-NGC-0147-GCS.htm and remember to click on the hyperlinked image for the same result but with better scale.
Back in a few days with another member of the Local group but with eight member globular clusters.
Clear skies!
Anthony.
