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Observers' Calendars for the Florida Tech Campus Observatory The astronomical calendars presented here were generated using a program called skycalendar written by John Thorstensen of Dartmouth College. The program, which can generate a calendar for any site, is available by from iraf.noao.edu in the contrib directory -- see the skycal.readme file in that directory for more details. The times of sunset, the end and beginning of astronomical twilight, and sunrise are given in local time, including daylight savings, if in effect. The rising and setting times take into account atmospheric refraction, the mean semidiameter of the Sun. If the moon rises or sets during the night, the rising or setting time is printed; around new moon, the tabulated rising occurs after the tabulated setting, even though the rising time is always printed first. The zenith distance used for moonrise and moonset is the same for sunrise and sunset. The last two columns give the topocentric celestial coordinates for midnight Eastern time. Since these tabular data have a wide page format they may be easier to view on a full-screen-wide viewer page. |
