Comet C/2023 A3 - David Mathre Photography

Sunday (22-December-2024) — New Jersey

Ten-Years Ago Today. Poppies and Lupines at Christ Church Cathedral, Stanley. (22-Dec-2014, Falkland Islands)

Silhouettes of an Airplane and Jets Passing in Front of the Sun.

Today, I captured images of an airplane and several jets transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was observing the sun with a Vespera Classic and a Vespera Pro telescope each fitted with a solar filter. The exposure time for solar observations with the Vespera Classic telescope is 250 microseconds (1/4000 sec) and with the Vespera Pro telescope is 1400 microseconds (1/714 sec). The Vespera Classic takes 51-52 solar images per minute and the Vespera Pro takes 8-9 solar images per minute.

Images taken with a Vespera Classic or Vespera-Pro telescope. Individual images in the slideshow are available in my PhotoShelter Gallery

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.9. The slideshow displays the 32nd, 64th and 96th stacked composite image (5 min 20 sec, 10 min 40 sec, 16 min). In the last two images there is some movement of the comet head.

Comet C/2023 A3 (Tsuchinshan–ATLAS). Images taken with a Vespera-Pro Telescope (250 mm, f/5, composites of 10 sec exposures). Individual images in the slideshow are available in my PhotoShelter Gallery

Saturday (21-December-2024) — New Jersey

Ten-Years Ago Today. Magellanic Penguins (Spheniscus magellanicus) on New Island. (21-Dec-2014, Falkland Islands)

Winter Solstice Walkabout after the Snowstorm.

The snow ended and the sky cleared soon after sunrise. I set up the telescopes to observe the sun then went for a walkabout around the yard. The snow was a light powder that I was able to easily clear the driveway with a leaf blower. The tractor and the snow blower are ready but weren’t needed this time.

Images taken with a Hasselblad X2d camera and 38 mm f/2.5 lens. Individual images in the slideshow are available in my PhotoShelter Gallery.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.9. The slideshow displays the 32nd, 64th, 128th, and 256th stacked composite image (5 min 20 sec, 10 min 40 sec, 21 min 20 sec, 42 min 40 sec). In the last two images there is some movement of the comet head.

Tuesday (17-December-2024) — New Jersey

Fifteen-Years Ago Today. Nakalele Point Blowhole, Maui Hawaii. (17-Dec-2009)

Silhouettes of a Jet Passing in Front of the Sun.

Today, I captured an image of a jet passing in front of the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Vespera Passengers telescope fitted with a solar filter. The exposure time for solar observations with the Vespera Passengers telescope is 300 microseconds (1/3333 sec). The Vespera Passengers takes ~30 solar images per minute. Over an hour that amounts to 0.54 seconds (or 0.015% of the time). I am not sure why the background of the image is blue. Previous observations the background was black and the sun orange. I will be contacting Vaonis support about the strange colors.

Silhouette of a jet transiting the sun with sunspots. Image taken with a Vaonis Vespera Passengers Telescope (200 mm, f/4, 1/3333 sec) with a solar filter.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.7. The first image is a composite of 32 images (5 min 20 sec) and the second one is a composite of 128 images (21 min 20 sec). In the second image there is some movement of the comet head.

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of128 10 sec images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 1280 sec).

Saturday (14-December-2024) — New Jersey

Twelve Years Ago. Late Fall 02:00 to 03:00 AM Sky Star Trail (with stationary anomaly) in New Jersey. (14-Dec-2012)

Silhouettes of Objects Passing in Front of the Sun.

Today, I captured images of a jet with a condensation trail and a bird transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Vespera Classic telescope fitted with a solar filter. The exposure time for solar observations with the Vespera Classic telescope is 250 microseconds (1/4000 sec). The Vespera Classic takes ~51 solar images per minute. Over an hour that amounts to 0.765 seconds (or 0.02% of the time).

Silhouette of a jet with a condensation trail transiting the sun with sunspots. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of a bird passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely, the comet is in the center of the frame. The magnitude is now 10.5. The first image is a composite of 32 images (5 min 20 sec) and the second one is a composite of 128 images (21 min 20 sec). In the second image there is some movement of the comet head.

Friday (13-December-2024) — New Jersey

Digital Art. Silhouette of an AI Drone Hovering in front of the Moon. (13-Dec-2024)

Silhouettes of an Airplane, Jets, and a Turkey Vulture Transiting the Sun.

Today, I captured images of an airplane, two jets, and a Turkey Vulture transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Vespera Classic and Vespera Pro automated telescope using solar filters.

Silhouette of a Turkey Vulture passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter. — Silhouette of a Turkey Vulture passing in front of the sun. Note I am guessing it is a Turkey Vulture. It could also be a Black Vulture. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of an airplane passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of a jet transiting the sun with sunspots. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Sun with sunspots and the silhouette of a jet. Image taken with a Vaonis Vespera Pro Telescope (250 mm, f/5, 1/4000 sec) with a solar filter.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.4. The first image is a composite of 32 images (5 min 20 sec) and the second one is a composite of 128 images (21 min 20 sec). In the second image there is some movement of the comet head.