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Astronomy Programs
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BASIC Programs for Astronomy

from Sky & Telescope

Please download these from their web page. Note that there are many more programs on this site - these were interesting to me, and look appropriate for the MC-10.

Program Name

Issue and Page

Description

SUNUP.BAS

Aug 94, p. 84

Times of sunrise/set at any place on Earth

MOONFX.BAS

Apr 94, p. 86

Moon phase and distance on any given date

RAINBOW.BAS

Feb 91, p. 199

Graphic simulation of a rainbow

MARS.BAS

Sep 90, p. 296

Physical ephemeris of Mars

MOONUP.BAS

Jul 89, p. 78

Compute moonrise-moonset times for any place

FRACTS.BAS

Jan 89, p. 80

Represent a decimal as a continued fraction

LUNAR.BAS

Jun 88, p. 640

Compute dates of lunar eclipses

DIAL.BAS

Dec 87, p. 646

Design a vertical sundial

EASTER.BAS

Mar 86, p. 294

Compute date of Easter

XYZ.BAS

Nov 85, p. 470

X,Y,Z coordinates of the Sun

KEPLER.BAS

Aug 85, p. 158

Solve Kepler's equation (celestial mechanics)

CALENDAR.BAS

Jul 85, p. 62

Perpetual calendar (Gregorian)

MOONS.BAS

Mar 85, p. 254

Dates and times of new and full Moon

GWMONTH.BAS

Oct 84, p. 347

Convert month number to name

SUNSHINE.BAS

Sep 84, p. 254

Hours of sunshine for a specific latitude

GMST.BAS

Jun 84, p. 558

Sidereal time for Greenwich meridian

CALJD.BAS

May 84, p. 454

Convert calendar date to Julian day

JDCAL.BAS

May 84, p. 454

Convert Julian day to calendar date