Many thanks to you !!! I love it !!! :-)

  • Im not an astronomical professional, but I think its the best programm Ive ever seen. Not so complicated but really realistic, wonderful easy to use and exact this what Ive ever searched for. Once again thank you for this wonderful work!! :-))) You made me very happy !!! :-)

    • I have just downloaded and explored this program and I am stunned. It is absolutely fantastic, and I also wish to thank the designers who made this free to the public. It will be an excellent resource for my beginning science students.

      Many, many thanks.

      Jim Happer
      Physics Teacher

    • If you like it, you can collaborate.
      Thank you.

      Sergio Trujillo.



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