SHOA

CHILEAN NAVY HYDROGRAPHIC AND OCEANOGRAPHIC SERVICE

The Hydrographic and Oceanographic Service of the Chilean Navy (SHOA) informs that the time on all the information published “on its website, mobile applications, and nautical publications” is conveyed in the time zone UTC – 4 for Continental Chile and Antarctic Territory, and UTC – 6 for Western Insular Chile. MORE INFORMATION

SOLSTICIOS Y EQUINOCCIOS 2018

Solstice and Equinox 2018 

  

 

 
 
 

Twilight

The time at which the Sun’s center is located between 18 degrees and 50 minutes of depression, and occurs twice a day: before sunrise and just after sunset. It is the moment when the sky is illuminated because the light of the Sun illuminates the upper layers of the atmosphere.

Civil Twilight

Civil Twilight begins or ends when the Sun’s center is 6 degrees below the horizon. At this time, first magnitude starts and planets begin to disappear (in the morning) or to become visible (in the evening). Objects are easily distinguished and the sea horizon is clearly visible. When the Sun is below this position, city activities require artificial illumination.

Nautical Twilight

The Nautical twilight begins or ends when the Sun’s center is 12 degrees below the horizon line. At this moment, the sea horizon begins to be perceived (in the morning) or to disappear (in the evening), and first and second magnitude starts used by sailors to determine the position of their vessel become visible at a glance.

Astronomical Twilight

The Astronomical twilight begins or ends when the Sun’s center is 18 degrees below the horizon line. At this moment, it is night or absolute darkness, and stars up to the sixth magnitude are visible at a glance.

 

 

PHASES OF THE MOON 2018
 

New Moon

First Quarter

    

Full Moon

Last Quarter

    

  d h m   d h m   d h m   d h m
JAN 16 22 17 JAN 24 18 20  JAN 01 22 24  JAN 08 18 25 
FEB 15 17 05 FEB  23 04 09  JAN 31 09 27  FEB 07 11 54 
MAR  17 09 12  MAR 24 11 35  MAR 01 20 51 MAR 09 07 20 
APR  15 21 57  APR  22 17 46  MAR 31 08 37  APR 08 03 18
MAY  15 07 48  MAY 21 23 49  APR 29 20 58  MAY 07 22 09 
JUN  13 15 43  JUN  20 06 51  MAY 29 10 20  JUN 06 14 32 
JUL  12 22 48  JUL 19 15 52  JUN 28 00 53  JUL 06 03 51
AUG  11 05 58 AUG 18 03 49  JUL 27 16 20  AUG 04 14 18
SEP 09 14 01  SEP 16 19 15  AUG 26 07 56 SEP 02 22 37
OCT  08 23 47  OCT 16 14 02  SEP 24 22 52  OCT 02 05 45
NOV  07 12 02  NOV 15 10 54  OCT 24 12 45  OCT 31 12 40 
DEC  07 03 20  DEC 15 07 49  NOV 23 01 39  NOV 29 20 19 
                 DEC 22 13 49 DEC  29 05 34 

  

Diagram of Light and Dark
Buscar
Diagram of Light and Dark
Valparaíso
Sun
Event Time
Beginning of nautical dawn
Beginning of civil dawn
Sunrise
Sunset
End of civil twilight
End of nautical twilight
Moon
Event Time
Sunrise
Sunset