2016 Sept. 2 ~ The Milky Way in the constellation Scutum
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Photographed at Algonquin Provincial Park, Ontario, Canada, between 22.17 and 22.30 EDT
(285 km by road north of Toronto)
* Temperature 12° C.
* Total exposure time: 6 minutes.
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Description:
One of the brightest sections in our home galaxy, the Milky Way, is in the small constellation Scutum (the Shield), which appears in the southern sky half way from the horizon to the zenith as seen from southern Canada and the northern United States.
In this area appear many foreground cold, dark nebulae, which obscure the light of the stars beyond. These dark regions were photographed and catalogued by the great American astronomer E. E. Barnard (1857 - 1923) (en.wikipedia.org/wiki/Edward_Emerson_Barnard), and bear the designation "B", numbered from 1 to 370.
Below centre in this view is a favourite target of amateur astronomers with modest telescopes: M11, the "Wild Duck Cluster". This is a rich open cluster of stars that looks like a duck in flight. See en.wikipedia.org/wiki/Wild_Duck_Cluster for more information about M11.
For a wider angle view of the entire constellation and the surrounding area, click here:
www.flickr.com/photos/97587627@N06/28583103700
For a version of this photo WITH labels, click on the RIGHT side of your screen, or click here:
www.flickr.com/photos/97587627@N06/31295105435
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Technical information:
Nikon D810a camera body on Teleview 101is apochromatic refracting telescope, mounted on Astrophysics 1100GTO equatorial mount with a Kirk Enterprises ball head
Six stacked frames; each frame:
540 mm focal length
ISO 4000; 1 minute exposure at f/5.4; unguided
(with LENR - long exposure noise reduction)
Subframes registered in RegiStar;
Stacked and processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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2016 Sept. 2 ~ The Milky Way in the constellation Scutum
******************************************************************************
Photographed at Algonquin Provincial Park, Ontario, Canada, between 22.17 and 22.30 EDT
(285 km by road north of Toronto)
* Temperature 12° C.
* Total exposure time: 6 minutes.
___________________________________________
Description:
One of the brightest sections in our home galaxy, the Milky Way, is in the small constellation Scutum (the Shield), which appears in the southern sky half way from the horizon to the zenith as seen from southern Canada and the northern United States.
In this area appear many foreground cold, dark nebulae, which obscure the light of the stars beyond. These dark regions were photographed and catalogued by the great American astronomer E. E. Barnard (1857 - 1923) (en.wikipedia.org/wiki/Edward_Emerson_Barnard), and bear the designation "B", numbered from 1 to 370.
Below centre in this view is a favourite target of amateur astronomers with modest telescopes: M11, the "Wild Duck Cluster". This is a rich open cluster of stars that looks like a duck in flight. See en.wikipedia.org/wiki/Wild_Duck_Cluster for more information about M11.
For a wider angle view of the entire constellation and the surrounding area, click here:
www.flickr.com/photos/97587627@N06/28583103700
For a version of this photo WITH labels, click on the RIGHT side of your screen, or click here:
www.flickr.com/photos/97587627@N06/31295105435
___________________________________________
Technical information:
Nikon D810a camera body on Teleview 101is apochromatic refracting telescope, mounted on Astrophysics 1100GTO equatorial mount with a Kirk Enterprises ball head
Six stacked frames; each frame:
540 mm focal length
ISO 4000; 1 minute exposure at f/5.4; unguided
(with LENR - long exposure noise reduction)
Subframes registered in RegiStar;
Stacked and processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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