This form allows you to select astronomical calendars for Mount Hamilton.
Three different calendars are available from this form
bright and dark run calendars).
Two contain the following information
in either nautical (12 degree) or astronomical (18 degree) versions respectively:
The third calendar gives the times of new, full, and first and last quarter moons for each month. Moon phase calendars include an entire year on one page, the "month" selection is therefore ignored.
The calendars were prepared by Dr. Arnold Klemola