Light times

Sunset on Sunday the 22nd of May is 5.15pm and civil twilight ends at 5.43pm 
The moon will rise at 9.57pm, it is in its waning gibbous phase and will be at 78.6 per cent fullness.

 




CARLTON NORTH   Lat=-37°47'00"  Long=+144°58'00"
TIMES OF SUNRISE AND SUNSET 
(for ideal horizon & meteorological conditions)
Time zone: +10.00 hours
22/05/2011  Rise 0719  Set 1715

TIMES OF CIVIL TWILIGHT 
(for ideal horizon & meteorological conditions)
Time zone: +10.00 hours
22/05/2011  Rise 0650  Set 1743

TIMES OF NAUTICAL TWILIGHT 
(for ideal horizon & meteorological conditions)
Time zone: +10.00 hours
22/05/2011  Rise 0618  Set 1815


http://www.ga.gov.au/bin/astro/sunrisenset


Sunset
Is defined as the instant in the evening under ideal meteorological conditions, with standard refraction of the sun's rays, when the upper edge of the sun's disk is coincident with an ideal horizon.
Ending of evening civil twilight
Defined as the instant in the evening, when the centre of the sun is at a depression angle of six degrees (6°) below an ideal horizon. At this time in the absence of moonlight, artificial lighting or adverse atmospheric conditions, the illumination is such that large objects may be seen but no detail is discernible. The brightest stars and planets can be seen and for navigation purposes at sea, the sea horizon is clearly defined.
Ending of evening nautical twilight
Is defined as the instant in the evening, when the centre of the sun is at a depression angle of twelve degrees (12°) below an ideal horizon. At this time in the absence of moonlight, artificial lighting or adverse atmospheric conditions, it is dark for normal practical purposes. For navigation purposes at sea, the sea horizon is not normally visible.
Ending of evening astronomical twilight
Is defined as the instant in the evening, when the centre of the sun is at a depression angle of eighteen degrees (18°) below an ideal horizon. At this time the illumination due to scattered light from the sun is less than that from starlight and other natural light sources in the sky.
Ideal Horizon
An ideal horizon exists when the surface forming the horizon is at a right angle to the vertical line passing through the observer's position on the earth. If the terrain surrounding the observer was flat and all at the same height above sea level, the horizon seen by the observer standing on the earth would approximate the ideal horizon.