Almanac
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Almanac for Palomar Observatory:
long. +7 47 27 (h.m.s) W, lat. +33 21.4 (d.m), elev. 1706 m
Pacific Daylight Savings Time assumed from 2 AM on
2009 Apr 5 to 2 AM on 2009 Oct 25; standard zone = 8 hrs W

For the night of: Wed, 2009 Nov 4 ---> Thu, 2009 Nov 5
Local midnight = 2009 Nov 5, 8 hr UT, or JD 2455140.833
Local Mean Sidereal Time at midnight = 3 11 17.0

Sunset ( 1706 m horizon): 16 59 PST; Sunrise: 6 03 PST
Evening twilight: 18 17 PST; LMST at evening twilight: 21 27
Morning twilight: 4 45 PST; LMST at morning twilight: 7 57
12-degr twilight: 17 48 PST --> 5 14 PST; night center: 23 31 PST

Moonrise: 18 12 PST
Moon at civil midnight: illuminated fraction 0.917
2.5 days after full moon, RA and dec: 4 59 15, +25 36.1

The sun is down for 13.1 hr; 10.5 hr from eve->morn 18 deg twilight.
Bright all night (moon up from evening to morning twilight).

(Computed with John Thorstensen's cool skycalc program.)

I've written a few sentences about how this program was put together.

Questions, suggestions, or criticisms? Please let me know.

Questions about observing, logistics, etc at Palomar should be sent to Dan McKenna in the Palomar Office.