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Annotation of researchv10dc/man/adm/man7/sky.7, revision 1.1

1.1     ! root        1: .TH SKY 7 bowell
        !             2: .CT 1 inst_info
        !             3: .SH NAME
        !             4: sky \- astronomical ephemeris
        !             5: .SH SYNOPSIS
        !             6: .B sky
        !             7: [
        !             8: .B -l
        !             9: ]
        !            10: .SH DESCRIPTION
        !            11: .I Sky
        !            12: predicts the apparent locations of the sun, moon, visible planets,
        !            13: and stars brighter than magnitude 2.5.
        !            14: It reads one line from the standard input to obtain the desired time
        !            15: expressed as five numbers: year, month, day, hour, and minute in GMT.
        !            16: An empty line means now.
        !            17: Each object is printed with astronomical coordinates, azimuth-elevation
        !            18: coordinates relative to Murray Hill, NJ, and magnitude.
        !            19: For variable stars the maximum magnitude is printed with 
        !            20: .LR * .
        !            21: .PP
        !            22: Option 
        !            23: .B -l
        !            24: causes
        !            25: .I sky 
        !            26: to prompt for another viewing location.
        !            27: .PP
        !            28: Standard astronomical effects are accounted for:
        !            29: nutation and precession of the equinox, annual aberration, diurnal parallax,
        !            30: and proper motion.
        !            31: Atmospheric effects (extinction and refraction) are not calculated,
        !            32: nor is perturbation of the earth by other bodies.
        !            33: .PP
        !            34: In ephemeris (slighly different from civil) time, the program
        !            35: yields
        !            36: positions of sun, moon, and stars good to a few tenths of an
        !            37: arc-second.
        !            38: Planets are good to a few seconds.
        !            39: .SH FILES
        !            40: .F /usr/lib/startab
        !            41: .SH SEE ALSO
        !            42: .IR scat (7)
        !            43: .br
        !            44: .I
        !            45: American Ephemeris and Nautical Almanac
        !            46: and
        !            47: .I
        !            48: Explanatory Supplement to the American Ephemeris and Nautical Almanac

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