PDA:Palm OS:Leisure:Astronomy Views 2254 (+0) / Rating 7.50 / Free
This programme graphically displays the phase of the Moon on any given day.
PDA:Palm OS:Leisure:Astronomy Views 671 (+0) / Rating 10.00 / Free
This is a elementary telescope pattern calculator for the amateur astronomer. It contains the following formulas: Magnification Speed/f-number Degrees of bailiwick Exit Pupil Dawes Limit Effective focal length with Barlow