A Ring around the Moon

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An incoming layer of high cirrus clouds announces a change in the high-pressure weather pattern. The ice crystals in the clouds create a highly visible 22° ring of light, also known as a halo around the first-quarter moon.

Lens: Tokina AT-X 12-24 f/f
Camera: Nikon D200
Exposure: f/4 15s ISO 200
Date: 12th February 2011

 

NGC 4565

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Move your mouse over the image to see annotations for some galaxies.

A larger version of this image which has been annotated with AVM headers can be opened in Microsoft WWT:ngc4565_150mm.jpg

Telescope:
 150mm f/5 Newtonian, Baader MPCC Coma Corrector
Camera
 Nikon D200
Exposure:
 4x300s, ISO 800
Date:
 18th, April 2009
Processing:
 Preprocessing (Dark, Flat & Bias correction), Alignment & stacking in IRIS, histogram adjustment curves, color correction in Photoshop.