This page contains several astronomical programs which I have written in Qbasic. In order to use these programs in adittion to downloading them you should also download the program file Qbasic.exe. To run a program open it in the Qbasic editor press F5 and follow the instructions on the screen. (Important: the files are in zip format. You should decompress the files before you can use them ).
This is the Qbasic environment in which you should open and run the astronomy programs.
Below is a list of the programs together with a description of what they do.
This program asks for a specific date and calculates when the major moon phases take place closer to that date.
Screen captures of Moon phases program
This program asks for a specific date and calculates the dates of maximum northern and southern declination of the moon around that date together with the declination values.
Screen captures of Moon declination program
This program asks for a specific date and calculates when the moon crosses the ascending and descending node in its orbit closer to that date.
Screen captures of Moon nodes program
This program asks for a year and calculates the exact dates and times of equinoxes and solstices for that year.
Screen captures of equinoxes and solstices program
All astronomy programs by the author
This page was last edited on: 04/01/2001