Department of Physics and Astronomy
Hicks Building Starlight Xpress Oculus All-Sky Camera
Auto-exposure techniques are used to take images every five minutes.
Exposure times start at 5, 10, 15, etc, minutes past the hour and range from 0.001 to 120 seconds based on the brightness of the sky around zenith.
Please make sure this page is refreshed to get the latest image.
Click on the image to get a full resolution sized version.
If the sky is clear, exposure times will tend towards the 120 seconds maximum. Very cloudy skies will have short exposure times.
If the image is all white and the exposure time is sub-second, then the sky is too bright. Subsequent exposures should show more detail.
The Hicks Observatory dome can be seen upside down at the top of the image and the main part of the Hicks Building is seen to the upper right.
North is up, East is to the left. Zenith is in the centre of the image and the North Celestial Pole (NCP) is just below the Hicks Observatory dome.
Start of exposure timestamp: 2017-10-21 20:55:02 UTC
Exposure time: 88.4 seconds
Image count statistics (range: 0 - 65535):
standard deviation: 13164
outer region maximum: 3627
100x100 pixel zenith region count statistics (range: 0 - 65535):
zenith region minimum: 23178
zenith region maximum: 39891
zenith region average: 28815
zenith region standard deviation: 2684
sun altitude (degrees): -35.1171
day/twilight/night status: night
||clear sky, 120 second exposure
||clear sky with the moon, 60 second exposure
||partially cloudy sky with the moon rising, 40 second exposure
||cloudy sky, 50 second exposure
||overcast sky with rain, 15 second exposure
||clear sky but with very high humidity, 77 second exposure