Astronomical Alamanac for Aug 16, 2019
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*** Almanac for the currently specified date ***:
Almanac for Cerro Tololo:
long. 4 43 16 (h.m.s) W, lat. -30 09.9 (d.m), elev. 2215 m
Chilean Daylight Savings Time used before 2 AM
2019 Mar 10 and after 2 AM 2019 Oct 13; standard zone = 4 hrs W
For the night of: Fri, 2019 Aug 16 ---> Sat, 2019 Aug 17
Local midnight = 2019 Aug 17, 4 hr UT, or JD 2458712.667
Local Mean Sidereal Time at midnight = 20 57 45.0
Sunset ( 2215 m horizon): 18 26 CST; Sunrise: 7 08 CST
Evening twilight: 19 40 CST; LMST at evening twilight: 16 37
Morning twilight: 5 55 CST; LMST at morning twilight: 2 53
12-degr twilight: 19 12 CST --> 6 23 CST; night center: 0 47 CST
Moonrise: 19 20 CST
Moon at civil midnight: illuminated fraction 0.973
1.6 days after full moon, RA and dec: 23 01 37, -10 39.9
The sun is down for 12.7 hr; 10.2 hr from eve->morn 18 deg twilight.
Bright all night (moon up from evening to morning twilight).
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