New mirror for Globular Clusters Database

Hello, I just completed the  set up a new mirror for gclusters; you can reach it at the following address:

From now on, the mirror should be kept synchronized with the main website. Please feel free to browse the new mirror, and report any problem you may find in using it 😉

Kind regards,



Links to Google Sky

Hi all,

hope you had a nice Easter! 😉

Maybe you have noticed the Google has opened a new service called Google Sky; detailed info on that project can be found in their About Google Sky page. For our purpouse, this service is interesing in what it allows you to see the images of great part of globular clusters, as well as to “move around” to (virtually) explore the enviroment around them.

I have started to add to the clusters’ data the link to the corresponding object seen in Google Sky: you may find the links in the right part of the page, in “Other Resources” section (see e.g. M13 page).Note that not all clusters have already the link, at the moment writing.

Little problems in the “new” website…

Hello, just a line to let you know that, since the new website for Gclusters is unreachable for some days (..argh!), I have switched the previous project version, hosted on the “old” website, at
The updated website will be reopened as soon as possible.

Anytime, the short link should be always point to a “working website” for the project 😉

Kind regards,

Some small steps…

Hi all,

just a brief update to keep you informed on the recent modification in the project. One change is about bibliographics items in the database: after some reflection, I have decided to keep well divided the two category of preprints and of published papers. As a consequence, from now on, preprints will not be inserted in the main database of the project. This is in order to build an homogeneous repository of published papers, not a unorganized collection of a mix of preprints and articles.

Preprints willl be added in a separate page – that can be followed by anyone interested in latest works on globular clusters – which should be (possibly) kept updated: the page itself is a “tumblelog” that you can reach at Latest preprints are visible also in the Gclusters main page (short address, thanks to the related RSS feed.

For the rest, I am still working in the direction described in the previous post, with the further addiction that also parameters NOT listed by Harris will have a place, in a future release of Gclusters. As always, feedback and suggestion are welcomed anytime! 🙂

With kind regards,


A more general approach…

Dear friends, just a screenshot to show you the next upgrade in Gclusters: I’m working to a more general approach in listing the different parameters, in order to display also the different value that are in the literature (that may differ also in a significant extent to the value in the 2003 Release of Harris’ database). Here is a screenshot concerning, as an example, the distance modulus values for the cluster NGC6441:

Screenshot via kwout



The next release of Gclusters will have the possibility to check different values for all the listed parameters. Admittedly, in order this feature to be significant, I should collect an extended database of the variuos parameters avaliable in the literature: any help on this would be extremely useful… 😉

With my best whishes for the Christmas holidays and for the new year,

Marco C.

Gclusters: new “Paola” release


the new release of the GGCs-DB (or “Gclusters”), codename “Paola” is now online at the address:

The short address also can be used:

Please feel free to test it! I’ll just want to add just a couple of notes:

  • right now, you cannot notice great differences in this new version, since the major modifications are “under the carpet”, as in the test release, and are related to a reorganization of MySQL databases, which may enable a lot of interesting things (such as the introduction of “tags” on bibliographics items).
  • the old version will still be online for the moment: if not else, for two (good) reasons…
    • other sites (SEDS for example) point to this version, and I do not want to “breack” their links.. I’ll add an automatic redirection before closing the old website
    • there are still some bugs in the new version… speacking about this, I’ll encourage interested people in testing the “Paola” release and send me feedbacks. Thanks in advance! 😉

With kind regards,

Marco Castellani