2025 Aug. 21 ~ M8, the Lagoon Nebula in Sagittarius
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
* Altitude of centre of the frame at time of exposures: 18°, declining to 16°
* Total exposure time: 15 minutes
* 1253 mm focal length telescope
* Field of view: 1° wide x 0.6° high
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Description:
One of the most prominent, largest, brightest and well known nebulae in the sky is the Lagoon Nebula, which is a favourite target of amateur astronomers with modest telescopes.
From Wikipedia: "The Lagoon Nebula ... is a giant interstellar cloud ... classified as an emission nebula and as an H II region. [It] was discovered by Giovanni Hodierna before 1654 and is one of only two star-forming nebulae faintly visible to the eye from mid-northern latitudes. Seen with binoculars, it appears as a distinct oval cloudlike patch with a definite core. Within the nebula is the open cluster NGC 6530.
The Lagoon Nebula is estimated to be between 4,000-6,000 light-years away from the Earth. In the sky of Earth, it spans 90' by 40', which translates to an actual dimension of 110 by 50 light years. ... The nebula contains a number of Bok globules (dark, collapsing clouds of protostellar material), the most prominent of which have been catalogued by E. E. Barnard as B88, B89 and B296."
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@N06/54766429840
__________________________________________
Technical information:
Nikon D810a camera body on Explore Scientific 152 mm (6") apochromatic refracting telescope, mounted on a Sky-Watcher EQ6-R PRO SynScan mount
Fifteen stacked subframes - each frame:
1253 mm focal length
ISO 8000; 1 minute exposure at f/8, unguided
Stacked in DeepSkyStacker
Processed in Photoshop CS6 (brightness, contrast, levels, colour balance)
2025 Aug. 21 ~ M8, the Lagoon Nebula in Sagittarius
****************************************************************************
Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
* Altitude of centre of the frame at time of exposures: 18°, declining to 16°
* Total exposure time: 15 minutes
* 1253 mm focal length telescope
* Field of view: 1° wide x 0.6° high
___________________________________________
Description:
One of the most prominent, largest, brightest and well known nebulae in the sky is the Lagoon Nebula, which is a favourite target of amateur astronomers with modest telescopes.
From Wikipedia: "The Lagoon Nebula ... is a giant interstellar cloud ... classified as an emission nebula and as an H II region. [It] was discovered by Giovanni Hodierna before 1654 and is one of only two star-forming nebulae faintly visible to the eye from mid-northern latitudes. Seen with binoculars, it appears as a distinct oval cloudlike patch with a definite core. Within the nebula is the open cluster NGC 6530.
The Lagoon Nebula is estimated to be between 4,000-6,000 light-years away from the Earth. In the sky of Earth, it spans 90' by 40', which translates to an actual dimension of 110 by 50 light years. ... The nebula contains a number of Bok globules (dark, collapsing clouds of protostellar material), the most prominent of which have been catalogued by E. E. Barnard as B88, B89 and B296."
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@N06/54766429840
__________________________________________
Technical information:
Nikon D810a camera body on Explore Scientific 152 mm (6") apochromatic refracting telescope, mounted on a Sky-Watcher EQ6-R PRO SynScan mount
Fifteen stacked subframes - each frame:
1253 mm focal length
ISO 8000; 1 minute exposure at f/8, unguided
Stacked in DeepSkyStacker
Processed in Photoshop CS6 (brightness, contrast, levels, colour balance)