The August 21, 2017 total solar eclipse over the Grand Tetons as seen from the Teton Valley in Idaho, near Driggs. This is from a 700-frame time-lapse and is of second contact just as the diamond ring is ending and the dark shadow of the Moon is approaching from the west at right, darkening the sky at right, and beginning to touch the Sun. The peaks of the Tetons are not yet in the umbral shadow and are still lit by the partially eclipsed Sun. With the Canon 6D and 14mm SP Rokinon lens at f/2.5 for 1/10 second at ISO 100.
This is the Milky Way and night sky on a perfectly clear night, July 25, 2017, on the Canadian Prairies at Writing-on-Stone Provincial Park in Alberta, near the border looking south to the Sweetgrass Hills (West Butte) of Montana. The Milk River, which flows into the Missouri River, winds below. The site is sacred to the Blackoot First Nations. The wooden buildings below are replicas of the late 1800s North West Mounted Police outpost in Police Coulee. Sagittarius and Scorpius are on the southern horizon at right, and Saturn is the bright object in the Dark Horse at far right. The galactic centre is amid the bright star clouds above the horizon. The sky at left is green with natural airglow. Altair is the bright star at top. The ground is illuminated only by starlight and airglow. This is a composite of a stack of 4 untracked exposures for the ground (mean combined to smooth noise) and 4 tracked exposures for the sky taken immediately afterwards, and again mean combined to smooth noise. All are 2 minutes at f/2 with the 20mm Sigma Art lens, and Nikon D750 at ISO 1600. The tracker was the Star Adventurer Mini.
The Milky Way over the Milk River in southern Alberta at Writing-on-Stone Provincial Park, near the Montana border. The Sweetgrass Hills on the horizon are in Montana. The buidlings in the river valley are recreations of a 19th century North West Mounted Police post. Jupiter is the bright object in the Dark Horse area, while Saturn is dimmer to the left. This was July 25, 2017. This is a stack of four 2-minute tracked exposures for the sky and a stack of four 2-minute untracked exposures for the ground, all at f/2 and ISO 1600 with the Sigma 20mm Art lens and Nikon D750. The tracker was the Star Adventurer Mini. The version is re-proprocessed in 2018 from the original 2017 version.
