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A composite of the Quadrantid meteor shower, on January 3, 2016, in a sequence of images shot over 2 hours from 9 to 11 pm MST from southern Alberta. This is a stack of 14 images, the best out of 600 shot that recorded meteors. The ground and sky comes from one image with the best Quad of the night, and the other images were masked and layered into that image, with no attempt to align their paths with the moving radiant point. However, over the 2 hours, the radiant point low in the north would not have moved too much, as it rose higher into the northern sky.

13899768 - A composite of the Quadrantid meteor shower, on January 3, 2016, in a sequence of images shot over 2 hours from 9 to 11 pm MST from southern Alberta. This is a stack of 14 images, the best out of 600 shot that recorded meteors. The ground and sky comes from one image with the best Quad of the night, and the other images were masked and layered into that image, with no attempt to align their paths with the moving radiant point. However, over the 2 hours, the radiant point low in the north would not have moved too much, as it rose higher into the northern sky.

$Total eclipse of the Moon, December 20/21, 2010, taken from home with 130mm AP apo refractor at f/6 and Canon 7D at ISO 400. An HDR composite of 9 images from 1/125 second to 2 seconds, composited in Photoshop CS5. Vibrancy increased to show bring out the colour variations across the shadow and at the edge of the shadow. Taken at about 12:21 am MST on Dec 21, about 20 minutes before totality began, during the partial phase.$

13898648 - Total eclipse of the Moon, December 20/21, 2010, taken from home with 130mm AP apo refractor at f/6 and Canon 7D at ISO 400. An HDR composite of 9 images from 1/125 second to 2 seconds, composited in Photoshop CS5. Vibrancy increased to show bring out the colour variations across the shadow and at the edge of the shadow. Taken at about 12:21 am MST on Dec 21, about 20 minutes before totality began, during the partial phase.

Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 135mm telephoto lens for a field of view of 10° x 15°. The tail appears to be about 4° long here. Taken about 5:45 am MST. The distinctive cyan tint of a comet's coma is prominent. The comet was in Serpens at the time.

13898154 - Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 135mm telephoto lens for a field of view of 10° x 15°. The tail appears to be about 4° long here. Taken about 5:45 am MST. The distinctive cyan tint of a comet's coma is prominent. The comet was in Serpens at the time.

Mercury at the middle of its transit across the Sun on November 11, 2019, here at 8:19 a.m. MST. This was and is as close to the centre of the Sun’s disk as Mercury will come in any transit of the 21st century. So this is a unique view.

13898872 - Mercury at the middle of its transit across the Sun on November 11, 2019, here at 8:19 a.m. MST. This was and is as close to the centre of the Sun’s disk as Mercury will come in any transit of the 21st century. So this is a unique view.

Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 200mm telephoto lens for a field of view of 10° x 6.8°. The tail appears to be about 3.5° long here. Taken about 6:30 am MST with the comet as high as it would be, though the sky is already beginning to brighten with the blue of dawn twilight. The distinctive cyan tint of a comet's coma is prominent.

13899261 - Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 200mm telephoto lens for a field of view of 10° x 6.8°. The tail appears to be about 3.5° long here. Taken about 6:30 am MST with the comet as high as it would be, though the sky is already beginning to brighten with the blue of dawn twilight. The distinctive cyan tint of a comet's coma is prominent.

A pass of the International Space Station with Canadian astronaut David St. Jacques on board, on the evening of January 26, 2019. I started the sequence just before 7 pm MST. The ISS is moving from right to left, southwest to southeast.

13899619 - A pass of the International Space Station with Canadian astronaut David St. Jacques on board, on the evening of January 26, 2019. I started the sequence just before 7 pm MST. The ISS is moving from right to left, southwest to southeast.