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New TG V6.3 Release

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mgw's picture
New TG V6.3 Release

A new version of TG has been released - TG V6.3 

Detailed installation and support Information is available at

In brief, this version adds the Melotte 111 standard field.

The current list of supported fields is:

  • M67
  • NGC 7790
  • NGC 1252
  • NGC 3532
  • M11
  • Melotte 111

In addition, this version now runs in either Python 2.7 or Python 3.6.  Previous users can remain with their current installations.  New users are encourage to install the latest Anaconda version using Python 3.6

For Mac users, some users have had problems running TG successfully.  This version has been tested with the latest OSX (High Sierra) and latest Anaconda releases of both Python 2.7 and 3.6.  It runs with one quirk easy to circumvent.  On a Mac, don't maximize any of the windows.  And, when a user stretches a window, strange artifacts appear in the window.  Selecting any of the action boxes on the window clears the problem.

Full details are available at

Email questions to me at


New TG V6.3 Release

Hi Gordon,

Thanks for adding Melotte 111 to the list of standard fields supported by TG. I find this new feature very useful for my DSLR photometry.

In order to test it, I just re-computed my transformation coefficients from a set of calibrated images of the Coma Cluster that I took last year.  It worked very well.

Using VPHOT and TG I get the same results given by the spreadshet approach, but the process is now much faster and saves a lot of work.

Thank you very much again


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