Author Topic: GLOBULAR CLUSTERS INDEX - Which one have I found?  (Read 9959 times)

jules

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GLOBULAR CLUSTERS INDEX - Which one have I found?
« on: October 05, 2008, 02:20:03 pm »
Star clusters are just some of the non-galaxy objects to be found in the SDSS survey. There are many Globular Clusters and Open Clusters in the SDSS Data Releases. They have been discovered and re-discovered several times! Identifying them visually can be a problem as one cluster ? especially a Globular Cluster ? looks much like another! NED often helps but not always. Because most of them do not have their own ObjID one of many nearby ObjIDs has to be used for identification which is why searching the forum does not always produce a result. So to help out with the identification I have catalogued them in two lists. If you find one ? now you?ll know which one it is! This is the globular clusters index. You'll find the open clusters index here.

Globular clusters are stable, gravitationally bound concentrations of stars which live within the halo of the Milky Way and orbit the galactic centre in an elliptical orbit. Each Globular contains approximately ten thousand to one million stars. Most are spherical with a diameter varying from 20 to 200 light years. They are thought to be some of the first objects to form after the formation of the Milky Way and contain old, metal poor stars though there are some exceptions. On a clear dark night several Globular Clusters can be seen through binoculars as large fuzzy ?stars? or through a telescope as bright balls of tiny stars.

The 13 Palomar Globular Clusters were discovered in the 1950s on the survey plates of the first Palomar Observatory Sky Survey. Not as tight as the more usual Globulars, many appear faint and dim because they are obscured by dust in our line of sight.

GLOBULAR CLUSTERS
NGC 2419 / Caldwell 25
587725774529560706
NGC 4147
587742865824284768
NGC 5024 / Messier 53
587742904477352372
NGC 5053
587742903940876314
NGC 5272 / Messier 3
587739720831926285
NGC 5466
587739709018603678
NGC 5904 / Messier 5
587729747911377073
NGC 6205 / Messier 13
587733609629089795
NGC 6229
587736980641808494
NGC 6341 / Messier 92
587739863643522635
NGC 7078 / Messier 15
587727223545004288
NGC 7089 / Messier 2
587731185114087743
Palomar 3 / Sextans C
587728949048180749
Palomar 4
587741489836523584
Palomar 5
588848899934126565
Palomar 14
587739809962655789
Palomar 1
1237671072220447479
NGC 7006
1237666428821897760
NGC 6254 / Messier 10
1237668633746014440
Palomar 13
1237678920735850515
NGC 6934
1237652985034375400
Palomar 11
1237668711066109507
Koposov 1
1237661949715480630

Koposov 2
1237657878077440067
Palomar 15
1237655549673275902
NGC 6535
1237651757748522493
GLIMPSE C01
1237662981041160470

Check these threads for globular clusters in other galaxies:
Globular clusters of other galaxies
Exo globular clusters

Globular Clusters in M31 Andromeda

Mayall IV (M31)
1237659929998065994
Martin-GC1 (M31)
1237680479271649362
Bol 373 (M31)
1237659931072593958
Bol 338 (M31)
1237659931072004188
Bol 094 (M31)
1237659888122920974
Bol 405 (M31)
1237659934830887255
« Last Edit: July 05, 2013, 01:39:06 pm by jules »

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Re: SDSS STAR CLUSTERS INDEX - Which one have I found?
« Reply #1 on: October 06, 2008, 12:59:50 pm »
Great work as usual Jules, thanks :)