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Live image analysis

                                Latest images (Last image taken 75471 hours ago)

Difference: 261.4 (Very High)
White pixels represent parts of the image which are lighter than the previous, black pixels represent parts of the image darker than the previous. Unchanged pixels are shown as grey. The difference value indicates the total change from the previous frame. A dark, cloudless sky typically has a value of below 5.
Edges: 14.9 (Very low)
Lighter pixels highlight the edges in the image; parts where pixels have a different value from their neighbours. The edges value indicates how many edges were detected in the image. Clear sky has a value of 20-35 due to the stars, lower values would indicate smooth overcast conditions whereas high values indicate broken clouds.
Brightness: 71.4% (Very High)
Exposure time: 0.002s (Very low)
The normal image from the camera. The brightness value is the natural logarithm of the average brightness across the sky, stretched so that 100% represents the brightness value during daytime. For a clear and moonless night the brightness is typically below 5%.

Sun Alt.: 1.5° (Very High) Moon Alt.: -11.3° (Very low) Moon Phase: 91.7% (Very High) Moon Brightness: 0% (Very low)

Live data
Graph Key
Exposure time (secs)
Brightness (%)