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GPSMAP 620 and GPSMAP 640 Owner’s Manual 27
Marine Mode: Viewing Almanac Data
Viewing Celestial Information
You can view celestial almanac data for your present location. You
can view information about sunrise, sunset, moonrise, moonset, the
moon phase, and the approximate sky view location of the sun and
moon.
To view celestial information from the Home screen, touch
Information > Celestial.
• Touch Change Date > Manual to view information for a
different date.
• Touch
and to view celestial information for a
different time on that date.
• Touch Show Moon Phase to view the moon phase at the
specied date and time. After touching Show Moon Phase,
touch Show Skyview to return to the celestial sky view.
• Touch Next Day or Previous Day to view celestial information
for a different day.