The ESO Sky Calendar Tool

Almanac

Roque de los Muchachos, La Palma
Fri, July 25, 2003

pseudo-Greenwich Daylight Savings Time assumed from 2 AM on
2003 Mar 30 to 2 AM on 2003 Sep 28; standard zone =   0 hrs W

For the night of: Fri, 2003 Jul 25 ---> Sat, 2003 Jul 26
Local midnight = 2003 Jul 25,    hr UT, or JD 2452846.458
Local Mean Sidereal Time at midnight =  18 01 26.3

Sunset ( 2326 m horizon):   21 15 GDT; Sunrise:    7 21 GDT
Evening twilight:   22 37 GDT;  LMST at evening twilight:   16 38
Morning twilight:    5 59 GDT;  LMST at morning twilight:    0 02
12-degr twilight:  22 04 GDT -->   6 32 GDT; night center:    2 18 GDT

Moonset :   18 26 GDT   Moonrise:    4 31 GDT   
Moon at civil midnight: illuminated fraction 0.111
3.3 days before new moon, RA and dec:   5 32 26,  24 47.8

The sun is down for 10.1 hr;  7.4 hr from eve->morn 18 deg twilight.
 5.9 dark hours after end of twilight and before moonrise.

SkyCalc provided by courtesy of John Thorstensen, Dartmouth College. John.Thorstensen@dartmouth.edu