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Fritz: All Fritz
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All Fritz
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EDUCNOMY
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ACE1.LZH
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HELP.TXT
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1986-09-26
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The Sun
Use this option to find, for the date and time you enter,
the sun's position (right ascension and declination),
altitude and azimuth, nutation in longitude and obliquity,
times of sunrise and sunset, and times of beginning and
ending of morning and evening astronomical twilight (the
time when the upper limb of the sun is 18 degrees below the
true horizon).
Example entry format:
Month Day Year Hrs Min Sec
1 1 1986 12 0 0
The Moon
Use this option to find, for the date and time you enter,
the moon's position (right ascension and declination),
altitude and azimuth, horizontal parallax (the angle
subtended by the earth as seen from the moon), distance
from the earth, semi-diameter, illuminated fraction, and
times of moonrise and moonset.
Example entry format:
Month Day Year Hrs Min Sec
1 1 1986 12 0 0
The Planets
Use this option to find, for the date, time, and planet
you enter, the position (right ascension and declination),
altitude and azimuth, distance from the earth, elongation,
semi-diameter, illuminated fraction, and times of rising
and setting (in chronological order). At this time, if you
enter "Pluto," ACE displays an error message.
Example entry format:
Month Day Year Hrs Min Sec Planet
1 1 1986 0 0 0 Mars
Eclipses
Use this option to list, for the month or year you enter, the
circumstances of solar and lunar eclipses visible from any
location. After you enter a month and year, you may list
eclipses for that month/year combination by entering "M" or
for that entire year by entering "Y." For each eclipse ACE
lists the UT date and time of the eclipse, the type of
eclipse, and the magnitude. For total lunar eclipses ACE
gives a more complete list of timings comprising beginning of
partial phase, beginning of total phase, maximum eclipse, end
of total phase, and end of partial phase.
Example entry format:
Month Year List[(M)onth, (Y)ear]
1 1986 Y
Astrophotography Exposures
Use this option to calculate, for the information you enter,
exposure times and image sizes needed in lunar and planetary
photography.
Example entry format:
Object Name: Mars
Objective Diameter: 200
Focal Length (same units as diameter): 2000
Film Speed (ISO): 100
Object Diameter (" of arc): 30
Magnitude: -2.5
Phase (0-1): 0.95
Filter Factor (1 = no filter): 1
Mean Sidereal Time and Julian Day
Use this option to find, for the date, time, right ascension,
and declination you enter, the Universal Time, Julian Day
Number, Greenwich Mean Sidereal Time, local Mean Sidereal
Time, hour angle, altitude, azimuth, airmass (thσ rati∩áoµ
áatmospheriπ interferencσá lookinτá towarΣá thσá objec⌠ a≤á
compareΣá t∩á tha⌠ lookinτátowarΣ thσ zenith¼áoε ß scalσ oµ ▒á
t∩á infinity¼á witΦ "***ó indicatinτ aε objec⌠ belo≈ thσ
horizon)¼á rise¼ anΣ set« ┴ messagσáwil∞ bσ displayeΣ iµ thσ
objec⌠ i≤ circumpola≥ froφ you≥ observinτ site.
site.
Example entry format:
Right Ascension Declination
Month Day Year Hrs Min Sec Hrs Min Sec Deg Min Sec
1 1 1986 20 0 0 0 40 0 41 40 0
Precession of Coordinates
Use this option to precess forward or backward, for the
epochs you enter, the coordinates of an object.
Example entry format:
From What Epoch? 1950
To What Epoch? 2000
Right Ascension Declination
Hrs Min Sec Deg Min Sec
0 40 0 41 40 0
Phases of the Moon
Use this option to find, for the month and year you enter,
the dates and times of each phase of the moon.
Example entry format:
Month Year
1 1986
Equinoxes and Solstices
Use this option to find, for the year you enter, the UT dates
and times of the beginning of the four seasons.
Example entry format:
Year
1986
Galilean Satellites of Jupiter
Use this option to plot graphically the relative positions of
the four Galilean satellites of Jupiter. The display starts
at the date and time entered. Each subsequent display,
updated at a rate set by your computer's speed (about one
display per second), shows to scale the satellites' positions
relative to the x-axis for the update interval you enter.
For example, an update interval of "60" displays the
positions as they would appear each hour. Aε updatσ interva∞
oµ "0ó display≤ thσ position≤ fo≥ onl∙ thσ date and time
entered.
Example entry format:
Month Day Year Hrs Min Sec Update Interval (Minutes)
1 1 1986 21 0 0 60
Perpetual Calendar
Use this option to display, for the month and year in the
Gregorian calendar you enter, the calendar for that month.
You may optionally request a printout of the calendar on the
printer you designated during the ACE installation process.
Example entry format:
Month Year Hardcopy[Y/N]
1 1986 N
Polaris
Use this option to find, for the month, day, and year you
enter, the times of the culminations and elongations of
Polaris.
Example entry format:
Month Day Year
1 1 1986
DOS Shell
Use this option to execute DOS commands without leaving ACE.
To return to ACE, type "EXIT" at the DOS prompt.
Exit
Use this option when you want to exit from the menu and
return to the DOS prompt.