2022 August 6 ~ The Aquila-Scutum Starcloud in the northern Milky Way
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
between 01.50 and 02.14 EDT
* Altitude of centre of frame at time of exposures: ~40°, declining to 37°
* Temperature 17° C.
* Total exposure time: 12 minutes
* 70 mm focal length lens
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Description:
On of the brightest patches in the northern section of our home galaxy, the Milky Way, lies in the constellations Aquila (the Eagle) and Scutum (the Shield). This starcloud contains many open clusters of stars, together with foreground globules of cold dark gas that are the incubators of new star formation.
One of the most prominent star clusters in this area of the sky is M11, the so-called "Wild Duck" cluster, which is a favourite observing target of amateur astronomers with modest telescopes. M11 is the small bright blob in the lower right quadrant in this image. 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 closer in view of M11 and the surrounding area, made in June 2020 with a 660 mm focal length telescope, click here:
www.flickr.com/photos/97587627@N06/50039721548
For a version of this photo WITH LABELS, showing constellation boundaries and the many open star clusters and dark nebulae, click on the RIGHT side of your screen, or click here:
www.flickr.com/photos/97587627@N06/52277624786
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Technical information:
Nikkor AF-S 70-200 mm f/2.8 G ED VRII lens on Nikon D810a camera body, mounted on Sky-Watcher EQ6-R Pro mount with a Kirk Enterprises ball head
Twelve stacked subframes; each frame:
70 mm focal length
ISO 5000; 1 minute exposure at f/4.5, unguided
(with LENR - long exposure noise reduction)
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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2022 August 6 ~ The Aquila-Scutum Starcloud in the northern Milky Way
***************************************************************************
Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
between 01.50 and 02.14 EDT
* Altitude of centre of frame at time of exposures: ~40°, declining to 37°
* Temperature 17° C.
* Total exposure time: 12 minutes
* 70 mm focal length lens
___________________________________________
Description:
On of the brightest patches in the northern section of our home galaxy, the Milky Way, lies in the constellations Aquila (the Eagle) and Scutum (the Shield). This starcloud contains many open clusters of stars, together with foreground globules of cold dark gas that are the incubators of new star formation.
One of the most prominent star clusters in this area of the sky is M11, the so-called "Wild Duck" cluster, which is a favourite observing target of amateur astronomers with modest telescopes. M11 is the small bright blob in the lower right quadrant in this image. 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 closer in view of M11 and the surrounding area, made in June 2020 with a 660 mm focal length telescope, click here:
www.flickr.com/photos/97587627@N06/50039721548
For a version of this photo WITH LABELS, showing constellation boundaries and the many open star clusters and dark nebulae, click on the RIGHT side of your screen, or click here:
www.flickr.com/photos/97587627@N06/52277624786
___________________________________________
Technical information:
Nikkor AF-S 70-200 mm f/2.8 G ED VRII lens on Nikon D810a camera body, mounted on Sky-Watcher EQ6-R Pro mount with a Kirk Enterprises ball head
Twelve stacked subframes; each frame:
70 mm focal length
ISO 5000; 1 minute exposure at f/4.5, unguided
(with LENR - long exposure noise reduction)
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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