2019 Sept. 25 ~ The Centre of our Milky Way galaxy
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Photographed 4.5 km north of (13 km by road from) Uluru-Kata Tjuta National Park (Ayers Rock), Northern Territory, Australia, between 23.00 and 23.19 CAST (Central Australia Standard Time)
* Observing site: Long. 131.07° E. | Lat. 25.22° S. | Elev. 501 m
* Altitude of centre of frame at time of exposures: ~54°
* Total exposure time: 15 minutes
* 50 mm focal length lens
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Description:
The centre of our home galaxy, the Milky Way, lies in the constellation Sagittarius, in the middle of the prominent bulge of stars and nebulae in this view, made with a 50 mm lens. Numerous star clusters, dark foreground gas clouds, and pink hydrogen gas nebulae are strewn across the frame.
The centre of the Milky Way lies very low on the horizon as seen from the northern hemisphere. Astronomers travel to the south in order to see the magnificence of the Milky Way straight overhead in the months of May-September.
At the top edge of the frame, centre, is the bright planet Jupiter; and at the bottom edge, close to the left corner, is the fainter planet Saturn.
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/48995801956
Here is a photo of the gear that used for astrophotography on this trip:
www.flickr.com/photos/97587627@N06/49017804808
__________________________________________
Technical information:
Sigma 50 mm f/1.4 DG HSM ART Lens on Nikon D810a camera body, mounted on an iOptron CEM40 equatorial mount with a Kirk Enterprises ball head
Fifteen stacked subframes - each frame:
ISO 2500; 1 minute exposure at f/4, 50 mm focal length, unguided (with LENR - long exposure noise reduction)
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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2019 Sept. 25 ~ The Centre of our Milky Way galaxy
****************************************************************************
Photographed 4.5 km north of (13 km by road from) Uluru-Kata Tjuta National Park (Ayers Rock), Northern Territory, Australia, between 23.00 and 23.19 CAST (Central Australia Standard Time)
* Observing site: Long. 131.07° E. | Lat. 25.22° S. | Elev. 501 m
* Altitude of centre of frame at time of exposures: ~54°
* Total exposure time: 15 minutes
* 50 mm focal length lens
___________________________________________
Description:
The centre of our home galaxy, the Milky Way, lies in the constellation Sagittarius, in the middle of the prominent bulge of stars and nebulae in this view, made with a 50 mm lens. Numerous star clusters, dark foreground gas clouds, and pink hydrogen gas nebulae are strewn across the frame.
The centre of the Milky Way lies very low on the horizon as seen from the northern hemisphere. Astronomers travel to the south in order to see the magnificence of the Milky Way straight overhead in the months of May-September.
At the top edge of the frame, centre, is the bright planet Jupiter; and at the bottom edge, close to the left corner, is the fainter planet Saturn.
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/48995801956
Here is a photo of the gear that used for astrophotography on this trip:
www.flickr.com/photos/97587627@N06/49017804808
__________________________________________
Technical information:
Sigma 50 mm f/1.4 DG HSM ART Lens on Nikon D810a camera body, mounted on an iOptron CEM40 equatorial mount with a Kirk Enterprises ball head
Fifteen stacked subframes - each frame:
ISO 2500; 1 minute exposure at f/4, 50 mm focal length, unguided (with LENR - long exposure noise reduction)
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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