1 058b0118 2005-01-03 devnull .TH ASTRO 1
3 058b0118 2005-01-03 devnull astro \- print astronomical information
4 058b0118 2005-01-03 devnull .SH SYNOPSIS
7 058b0118 2005-01-03 devnull .B -dlpsatokm
22 058b0118 2005-01-03 devnull .SH DESCRIPTION
24 058b0118 2005-01-03 devnull reports upcoming celestial events, by default for 24 hours starting now.
25 058b0118 2005-01-03 devnull The options are:
28 058b0118 2005-01-03 devnull Read the starting date.
29 058b0118 2005-01-03 devnull A prompt gives the input
33 058b0118 2005-01-03 devnull Read the north latitude, west longitude, and elevation of the observation point.
34 058b0118 2005-01-03 devnull A prompt gives the input format.
37 058b0118 2005-01-03 devnull is missing, the initial position is read from the file
38 c8b6342d 2005-01-13 devnull .BR \*9/sky/here .
41 058b0118 2005-01-03 devnull Report for
43 058b0118 2005-01-03 devnull (default 1) successive days.
46 058b0118 2005-01-03 devnull Used with
48 058b0118 2005-01-03 devnull set the interval to
50 058b0118 2005-01-03 devnull days (or fractions of days).
53 058b0118 2005-01-03 devnull Report distance between the centers of
54 058b0118 2005-01-03 devnull objects, in arc seconds, during eclipses or occultations involving
57 058b0118 2005-01-03 devnull .IR obj2 .
60 058b0118 2005-01-03 devnull Print the positions of objects at the
61 058b0118 2005-01-03 devnull given time rather than searching for interesting
62 058b0118 2005-01-03 devnull conjunctions.
63 058b0118 2005-01-03 devnull For each, the name is followed by
64 058b0118 2005-01-03 devnull the right ascension (hours, minutes, seconds),
65 058b0118 2005-01-03 devnull declination (degrees, minutes, seconds),
66 058b0118 2005-01-03 devnull azimuth (degrees),
67 058b0118 2005-01-03 devnull elevation (degrees),
68 058b0118 2005-01-03 devnull and semidiameter (arc seconds).
69 058b0118 2005-01-03 devnull For the sun and moon, the magnitude is also printed.
70 058b0118 2005-01-03 devnull The first line of output presents the date and time,
71 058b0118 2005-01-03 devnull sidereal time, and the latitude, longitude, and elevation.
74 058b0118 2005-01-03 devnull Print output in English words suitable for speech synthesizers.
77 058b0118 2005-01-03 devnull Include a list of artificial earth satellites for interesting events.
78 058b0118 2005-01-03 devnull (There are no orbital elements for the satellites, so this option
79 058b0118 2005-01-03 devnull is not usable.)
84 058b0118 2005-01-03 devnull from standard input.
86 058b0118 2005-01-03 devnull is the difference between ephemeris and
87 058b0118 2005-01-03 devnull universal time (seconds) due to the slowing of the earth's rotation.
89 058b0118 2005-01-03 devnull is normally calculated from an empirical formula.
90 058b0118 2005-01-03 devnull This option is needed only for very accurate timing of
91 058b0118 2005-01-03 devnull occultations, eclipses, etc.
94 058b0118 2005-01-03 devnull Search for stellar occultations.
97 058b0118 2005-01-03 devnull Print times in local time (`kitchen clock')
98 058b0118 2005-01-03 devnull as described in the
99 058b0118 2005-01-03 devnull .B timezone
100 058b0118 2005-01-03 devnull environment variable.
103 058b0118 2005-01-03 devnull Includes a single comet in the list of objects.
104 058b0118 2005-01-03 devnull This is modified (in the source) to refer to an approaching comet
105 058b0118 2005-01-03 devnull but in steady state
106 058b0118 2005-01-03 devnull usually refers to the last interesting comet (currently Hale-Bopp, C/1995 O1).
107 058b0118 2005-01-03 devnull .SH FILES
109 c8b6342d 2005-01-13 devnull .B \*9/sky/estartab
110 058b0118 2005-01-03 devnull ecliptic star data
112 c8b6342d 2005-01-13 devnull .B \*9/sky/here
113 058b0118 2005-01-03 devnull default latitude (N), longitude (W), and elevation (meters)
114 058b0118 2005-01-03 devnull .SH SOURCE
115 c3674de4 2005-01-11 devnull .B \*9/src/cmd/astro
116 058b0118 2005-01-03 devnull .SH SEE ALSO
117 058b0118 2005-01-03 devnull .IR scat (1)
118 058b0118 2005-01-03 devnull .SH BUGS
121 058b0118 2005-01-03 devnull option reverts to GMT outside of 1970-2036.