*** Almanac for the currently specified date ***:
Almanac for ESO, Cerro La Silla:
long.   4 42 55 (h.m.s) W, lat. -29 15.4 (d.m), elev.  2347 m
Chilean Daylight Savings Time used before 2 AM 
2001 Mar 11 and after 2 AM 2001 Oct 14; standard zone =   4 hrs W

For the night of: Sun, 2001 Apr 8 ---> Mon, 2001 Apr 9
Local midnight = 2001 Apr 9,  4 hr UT, or JD 2452008.667
Local Mean Sidereal Time at midnight =  12 26 58.3

Sunset ( 2347 m horizon):   18 39 CST; Sunrise:    6 51 CST
Evening twilight:   19 50 CST;  LMST at evening twilight:    8 17
Morning twilight:    5 39 CST;  LMST at morning twilight:   18 07
12-degr twilight:  19 23 CST -->   6 07 CST; night center:    0 45 CST

Moonrise:   19 10 CST   
Moon at civil midnight: illuminated fraction 0.984
1.0 days after full moon, RA and dec:  14 10 43,  -7 46.5

The sun is down for 12.2 hr;  9.8 hr from eve->morn 18 deg twilight.
Bright all night (moon up from evening to morning twilight).