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User's Guide for Almanac, version 1.0

1. Getting Started

Almanac gives you the capability to determine the times of rising, setting, and meridian transit for the sun, the moon, and the planets. It also enables you to calculate the beginning and ending of astronomical, nautical, and civil twilight.

The results of the calculations are formatted and written into a text editor. You can perform all common editing functions and save the data as a text file.

Sample output:

Tuesday, December 31, 2002
Location:  42°30' N, 71°05' W

Sun     : RA = 18h42m49s, Dec = -23°04'24", distance =  0.98333 AU
05:32 R : astronomical twilight begins
06:07 R : nautical twilight begins
06:42 R : civil twilight begins
07:14 R : rise,    azimuth: 121.23
11:47 R : transit, azimuth: 180.00, altitude:  24.46
16:21 R : set,     azimuth: 238.80
16:53 R : civil twilight ends
17:28 R : nautical twilight ends
18:02 R : astronomical twilight ends
Length of day: 09hr 07min

Moon    : RA = 16h41m34s, Dec = -22°20'24", distance = 57.91086 earth radii
04:55 R : rise,    azimuth: 119.95
09:40 R : transit, azimuth: 180.00, altitude:  24.44
14:20 R : set,     azimuth: 238.08

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