Astrophotography

Astrophotography

I recently moved into the world of digital photography when I acquired two Nikon D750 DSLR cameras. From time to time, I will post results here.

Rendered videos are also available on the Videos page.


Smoky conditions in Calgary last night gave the Moon a distinctive orange color. This is a stack of 32 images (1/60 sec. exposure at ISO 800) at 9:18 p.m. on August 22, 2018, with the Nikon D750 and a Meade 4" f/10 Schmidt-Cassegrain telescope.

Stacking with PIPP and post-stack processing with RegiStax 6 and Photoshop CC.

Well, it took me a week to find one tiny meteor from my series of 116 shots of the Perseid meteor shower, but here it is! There are also three earth satellites, a plane (lower left corner), and M31 (the Andromeda Galaxy) in this ten-second exposure at ISO 2016 with a Nikon D750 and Sigma Art 14mm f/1.8 DG HSM lens.

This picture was taken at 11:14 p.m. on the evening of August 13, 2018, facing towards the radiant in the northeast. Photoshop CC was used to adjust the contrast and brightness.

Another spectacular sunset in the Springbank Hill suburb of Calgary, courtesy of the forest fires in British Columbia, at 8:13 p.m. on August 17, 2018.

This is a 1/500 sec. exposure at ISO 200 with a Nikon D750 and Sigma 135mm DG lens at f/5.6. Photoshop CC was used to adjust the contrast and brightness.

While the forest fires in British Columbia continue to play havoc with our night-time skies here in Calgary, the smoke makes for some awesome day pics. Here is the Sun at 8:05 p.m. on August 15, 2018, 52 minutes before sunset.

This is a 1/500 sec. exposure at ISO 200 with a Nikon D750 and Sigma 135mm DG lens at f/5.6. Photoshop CC was used to adjust the contrast and brightness.

The Summer Milky Way as seen from Scott Lake Hill, about 53 km west of Calgary, on the evening of August 13, 2018. This is a 10-second exposure at ISO 2016 with a Nikon D750 and Sigma Art 14mm f/1.8 DG HSM lens. Photoshop CC was used to adjust the contrast and brightness.

Mars is the bright red object in the left side of the image. Saturn is buried within the Milky Way at the bottom center.

Click here for an uncompressed version.

A composite picture of the passage of the International Space Station over Calgary on August 5, 2018. Two-second exposures were taken every four seconds. A Nikon D750 with a Sigma Art 14mm f/1.8 DG HSM lens was used for this wide-angle shot, operating at ISO 800 and f/3.5.

Jupiter is the bright object below the ISS track, in the middle of the frame. Saturn is above the end of the track on the left side.

Click here for an uncompressed version.

Click here for a rendered video. Two-second exposures were taken every four seconds, then processed in Lightroom and combined in Photoshop.

The Moon and Venus in conjunction on the evening of July 15, 2018 at 10:46 PM MDT, as seen from Calgary. A 1/2 sec. exposure with a Nikon D750 at ISO 800 and a Meade 4" f/10 Schmidt-Cassegrain telescope.

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The Moon and Venus in conjunction on the evening of July 15, 2018 at 11:05 PM MDT, as seen from Calgary. This is a 1/8 sec. exposure at ISO 800 with a Nikon D750 and Sigma 135mm DG lens at f/1.8.

Click here for an uncompressed version.

Three close-ups of the Moon on April 25, 2018, at 10:24 PM MDT as seen from Calgary. All images are 1/500 sec. exposures at ISO 800 with my Nikon D750 and the Meade 8" f/10 LX200GPS Schmidt-Cassegrain telescope.

The left photograph is a single exposure, while the middle photograph is a stack of 12 images, cropped and aligned with PIPP, and stacked with RegiStax 6. Note the increase in resolution in the stacked photograph.

The right photograph is the result of RegiStax 6 applying a Denoise setting of 0.25 and a Sharpen setting of 0.140, with Linked Wavelets, to the middle photograph. There is better contrast in the final photograph, while retaining detail along the terminator (upper-left corner).

The Moon on April 25, 2018, at 10:24 PM MDT as seen from Calgary. This is a 1/500 sec. exposure at ISO 800, my first photograph with my Nikon D750 and the Meade 8" f/10 LX200GPS Schmidt-Cassegrain telescope.

This is a stack of 12 images, cropped and aligned with PIPP, then stacked and processed (Denoise setting of 0.25 and Sharpen setting of 0.140, with Linked Wavelets) with RegiStax 6.

The Moon on April 23, 2018, at 10:26 PM MDT as seen from Calgary. This is a 1/250 sec. exposure at ISO 400 with the Meade 4" f/10 telescope. For this image, I did a collimation of the telescope's optics, and for the first time shot the Nikon D750 with the mirror in the lock-up position to minimize vibration.

The Moon on April 21, 2018, at 10:07 PM MDT as seen from Calgary. A 1/125 sec. exposure with a Nikon D750 at ISO 400 and a Meade 4" f/10 Schmidt-Cassegrain telescope.

The Moon and Venus in conjunction on the evening of April 17, 2018 at 9:49 PM MDT, as seen from Calgary. This is a 1/2 sec. exposure at ISO 1600 with a Nikon D750 and AF-S Nikkor 35mm lens at f/1.8.

The star directly below the Moon is 5 Tauri, with an apparent magnitude of 4.14.

Click here for an uncompressed version.

The Moon and Venus in conjunction on the evening of April 17, 2018 at 9:45 PM MDT, as seen from Calgary. This is a 1/8 sec. exposure at ISO 1600 with a Nikon D750 and Sigma 135mm DG lens at f/1.8.

The star directly below the Moon is 5 Tauri, with an apparent magnitude of 4.14.

Click here for an uncompressed version.

A composite picture of the passage of the International Space Station over Calgary on February 9, 2018. One-second exposures were taken every two seconds. A Nikon D750 at ISO 800 with a Sigma Art 14 mm f/1.8 DG HSM lens was used for this wide-angle shot.

Click here for an uncompressed version.

Click here for a rendered video. One-second exposures were taken every two seconds, then processed in Lightroom and combined in Photoshop.

A composite picture of the passage of the International Space Station over Calgary on December 8, 2017. 1/13-second exposures were taken every two seconds. A Nikon D750 with a Sigma Art 14mm f/1.8 DG HSM lens was used for this wide-angle shot.

Click here for an uncompressed version.

A composite picture of the passage of the International Space Station over Calgary on November 30, 2017. Two-second exposures were taken every four seconds. A Nikon D750 at ISO 400 with a Sigma Art 14mm f/1.8 DG HSM lens was used for this wide-angle shot.

Click here for an uncompressed version.

Click here for a rendered video. Two-second exposures were taken every four seconds, then processed in Lightroom and combined in Photoshop.

A composite picture of the passage of the International Space Station over Calgary on October 3, 2017. One-second exposures were taken every two seconds. Notice how the object slows down as it moves further to the east and away from the viewing site. The last few streaks turn red as the ISS moves into the Earth's shadow and disappears.

Click here for a rendered video. One-second exposures were taken every two seconds, then processed in Lightroom and combined in Photoshop.

The Moon on October 3, 2017, taken with the Meade 4" f/10 Schmidt-Cassegrain telescope. Photoshop CC was used to adjust the contrast and brightness.

A composite picture of the rising Moon with a regular lens, from Calgary on October 3, 2017.

The Moon on October 2, 2017, at 10:22 PM MDT, taken with the Meade 4" f/10 Schmidt-Cassegrain telescope.

A composite picture of the rising Moon with a regular lens and through a telescope, from Calgary on October 1, 2017.

The Moon on September 27-29, 2017, from Calgary.

Pictures of the rising Moon were taken every three minutes and combined in Photoshop CC with a landscape photograph taken before moonrise. This montage was acquired near Ardrossan, Alberta, on September 7, 2017, nearly two days after Full Moon.

Note that due to refraction, the Moon was compressed vertically as it rose compared to its appearance later in the evening.

One day after the Full Moon, moonrise near Ardrossan, Alberta, on September 6, 2017. Pictures taken five minutes apart were combined in Photoshop CC.

Pictures of the Full Moon were taken every five minutes and combined in Photoshop CC with a landscape photograph taken at moonrise. This montage was acquired at Calgary, Alberta, on September 5, 2017.

The Sun on September 7, 2017. Notice how the sunspots have moved compared to the image two days earlier, due to the Sun's rotation.

The Sun on September 5, 2017. A solar filter was used with a Meade 4" f/10 Schmidt-Cassegrain telescope. Photoshop CC turned the original grey image into a pleasing yellow depiction.

The Moon on June 5, 2017, taken with the Meade 4" f/10 Schmidt-Cassegrain telescope. Photoshop CC was used to adjust the contrast and brightness.

The Moon on May 29, 2017, taken with the Meade 4" f/10 Schmidt-Cassegrain telescope. This photograph was acquired in JPEG format, which lacks the dynamic range of a NEF (RAW) image.