... 2006 April 13 . Star Cluster Dreams . ... Explanation: Located some 7,000 light-years away toward the constellation Perseus, this pair of open or galactic star clusters really is visible to the unaided eye and was cataloged in 130 BC by Greek astronomer Hipparchus . ... But what if this famous double star cluster were closer, say only 700 light-years distant from our fair solar system, crowding our sky with stars? ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

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• APOD: 2008 April 2- Globular Cluster M55 from CFHT
• APOD: 2004 September 18 - M55: Globular Star Cluster
• APOD: 2000 September 22 - M55: Globular Star Cluster

... Credit: Jose Suro Explanation: Located some 7,000 light-years away toward the constellation Perseus, this pair of open or galactic star clusters really is visible to the unaided eye and was cataloged in 130 BC by Greek astronomer Hipparchus . Now known as h and chi Persei (NGC 869/884), the clusters themselves are separated by a few hundred light-years and contain stars much younger, and hotter than the Sun. ... Publications with keywords: star cluster - galactic cluster . ...

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• Астронет > Star Cluster Dreams
• A Double Star Cluster
• Double Cluster in Perseus

... 2000 August 4 . M15: Dense Globular Star Cluster . ... In fact, only 40,000 light-years away in the constellation Pegasus, M15 is one of the most densely packed globular star clusters in our Milky Way Galaxy. This stunning Hubble Space Telescope image of M15 shows thousands of individual stars across the central 10 or so light-years of the cluster, also cataloged as NGC 7078. ... Globular star clusters harbor from a hundred thousand up to a million stars and roam the Milky Way halo. ...

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• APOD: July 9, 1999 - NGC 7789: Galactic Star Cluster
• APOD: January 6, 1999 - M6: The Butterfly Cluster
• APOD: December 13, 1997 - The Coma Cluster of Galaxies

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Virtual Observatory
• SAI OCL Catalog Publications
• SAI OCL Catalog Description

PETROTYP has been designed for clustering igneous rock compositions given as concentrations of major element oxides. This program is based on principles of hierarchical grouping of objects that are characterized by an array of parameters described as an objective function (Ward, 1963). The major principle involves a subsequent combining of samples having the minimum geochemical distance (GD) with respect to other rocks or average cluster compositions formed at a previous stage. ...

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ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

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• Index of /groups/cluster/gcvs/digit/mdv
• Index of /groups/cluster/gcvs/digit
• Index of /groups/cluster/gcvs/digit/preprint.files

8. Hydrophobic clusters

9. SDPsite - Algorithm Format requirements

10. Dzwinel W., Yuen D.A., Boryczko K. - Cluster Analysis, Data-Mining,

11. Inorganic Synthesis Laboratory - Supramolecular and Cluster Compounds

12. CLEO: USER & ADMIN-FRIENDLY CLUSTER BATCH SYSTEM | Moscow University

13. Lesson 1: getting the most power of your multicore, SMP system or cluster with

14. http://kodomo.cmm.msu.su/FBB/year_04/doc/BLAST_help/blastclust.html

15. Zeitschrift Fur Physik D-Atoms Molecules and Clusters - журнал | ИСТИНА -

16. Difference between workstation clusters and MPPs | PARALLEL.RU -

17. GCVS Research Group: Homepage.

18. fc3:cluster:thep29 [THEP]

19. Index of /pub/gentoo-portage/sys-cluster/cluster-glue/

20. Division of the Galaxy and Variable Stars