The Wonderful Winter Sky

By: Alan Dyer

Feb 21 2011

Tags: , , , , , , , ,

Category: Constellations, Deep-Sky

1 Comment

Aperture:f/4
Focal Length:35mm
ISO:800
Shutter:240 sec
Camera:Canon EOS 5D Mark II

While I took this image a year ago in early 2010, I thought I’d post this up now, with the new blog now underway. This is a mosaic of what surely ranks as one of the most amazing areas of sky — the vast panorama of the night sky visible in the northern hemisphere each winter. Here we see more bright stars than at any other season of the year, in the constellations (in clockwise order) of Orion, Canis Minor, Gemini, Auriga, and Taurus. Canis Major and its luminary, Sirius, are just off the bottom of the frame.

This is a 4-panel mosaic, each panel consisting of four 4-minute exposures plus two 4-minute exposures with a soft diffuser filter to add the star glows. Each was taken at ISO 800 with the Canon 5D MkII and a 35mm lens at f/4. Slight haze, changing sky fog, and changing elevation of the fields make it tough to get consistent colours across the sky during the couple of hours of exposure time needed to grab the images for such a mosaic, especially from my home latitude. But this attempt worked pretty well and records the wealth of bright red and dark nebulosity throughout this area of sky, a region of the Milky Way in our spiral arm but a little farther out from the centre of the Galaxy than where we live.

- Alan, January 2011 / Image © 2010 Alan Dyer

One comment on “The Wonderful Winter Sky”

  1. Hi found your brilliant photo whilst searching through Google. I have a page on Facebook which I hope to collate numerous pictures and with the blog off beat travel tales just to liven up our lives in what is becoming a very difficult world to be. Not many of us ‘look up’ whilst going about our business and hopefully my page will show us what we are missing
    Kind Regards
    David

    http://www.facebook.com/pages/Wonderful-Sky/302267586457136


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