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Astronomy spreadsheet for a variety of useful and interesting information:
calculate minimum and maximum powers for any telescope;
calculate power, apparent field of view and exit pupil of any eyepiece with any telescope;
see how the height of the eyepiece varies from horizon to zenith;
sortable, searchable list of all Messier and Herschel objects;
calculate how many stars are visible at various magnitudes;
see how many years old you would be on a different planet;
see the scale of astronomical distances in terms of toilet paper sheets;
see the scale of sun and planets in common objects.
Note: requires MS Excel or compatible.
Author(s): Ohio Star Software (support@astronotes.com) Version: Filesize: 195.31 Kb Language(s): English License type: Free
