Thursday (09-January-2025) — New Jersey

Nine-Years Ago Today. Brown Booby hitching a ride on the MV World Odyssey as we cross the Pacific Ocean. (09-Jan-2016, Semester at Sea Spring Voyage)

Silhouette of a Jet Transiting the Sun.

Today, while looking at the sunspots (we are at or near the solar maximum) I captured an image of a jet transiting the sun. This was with a Stellina automated telescope fitted with a solar filter.

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

Cold Winter Night Sky.

The forecast for the night was mostly clear. The waxing gibbous moon is getting brighter (79% illuminated). For the first of the night, I programed the “Plan my Night” sequence on the Vespera telescopes to first observe the moon, then later as the moon moves to the west picked some deep sky observation targets in parts of the sky away from the moon. I also set up a Nikon D9 camera with a 8-15 mm fisheye lens to take a sequence of images of the night sky with the full Vespera family of telescopes in the foreground. These images were then used to create the following time-lapse video. The moon is the bright object. You can watch the Orion constellation travel across the sky. Lots of jet trails, and almost no clouds. Best viewed in the dark and expanded to full scale. Images captured by the telescopes to follow.

Wednesday (08-January-2025) — New Jersey

Nine-Years Ago Today. Crepuscular rays from the deck of the MV World Odyssey. Semester at Sea. (08-Jan-2016, Pacific Ocean)

Silhouette of a Jet Transiting the Sun.

Today, while looking at the sunspots (we are at or near the solar maximum) I captured an image of a jet transiting the sun. This was with a Stellina automated telescope fitted with a solar filter.

Sun with sunspots and the silhouette of a jet.. Image taken with a Vaonis Stellina Telescope (400 mm, f/5) with a solar filter
Sun with sunspots and the silhouette of a jet. Image taken with a Vaonis Stellina Telescope (400 mm, f/5) with a solar filter.

Time-lapse video of tree getting in the way of the sun. Images taken with a Stellina automated telescope fitted with a solar filter.

Cold Winter Night Sky.

The forecast for the night was mostly clear. The waxing gibbous moon is getting brighter (69% illuminated). For the first of the night, I programed the “Plan my Night” sequence on the Vespera telescopes to first observe the moon, then later as the moon moves to the west picked some deep sky observation targets in parts of the sky away from the moon. I also set up a Nikon D9 camera with a 8-15 mm fisheye lens to take a sequence of images of the night sky with the full Vespera family of telescopes in the foreground. These images were then used to create the following time-lapse video. The moon is the bright object. You can watch the Orion constellation travel across the sky. Lots of jet trails, a few passing clouds, and a couple of meteors. Best viewed in the dark and expanded to full scale. Images captured by the telescopes to follow.

Time-lapse video of the Vespera family of telescopes viewing the winter night sky over New Jersey.

Six-Years Ago (02-January-2011) — Argentina

Gone to See Patagonia 2010/2011. Photography Workshop with Thom Hogan. Day 7: Hosteria El Pilar.

Orion is upside down in the southern hemisphere. A dark night sky in Patagonia. Hosteria El Pilar, El Chalten, Argentina. Image taken with a Nikon D3s camera and 50 mm f/1.4G (ISO 12800, 50 mm, f/2, 1/15 sec).

Night Sky in Patagonia. Hosteria El Pilar, El Chalten, Argentina. Image taken with a Nikon D3s and 50 mm f/1.4G (ISO 12800, 50 mm, f/2, 1/15 sec) (David J Mathre)
Night Sky in Patagonia. Hosteria El Pilar, El Chalten, Argentina. Image taken with a Nikon D3s and 50 mm f/1.4G (ISO 12800, 50 mm, f/2, 1/15 sec) (David J Mathre)



Individual images from the slide-show can be viewed here.

Monday (16-November-2009) — New Jersey

Backyard Autumn Night Sky in New Jersey.

Orion, Taurus, Pleiades and clouds. Looking South from my backyard. One of ~ 1000 images taken with a Nikon D3x and 24 mm f/3.5 PC-E lens (ISO 400, 24 mm, f/4, 30 sec). I transformed the series into a time-lapse video using Photoshop (720p, 24p).

New Jersey Autumn Night Sky. Image acquired with a Nikon D3x and 24 mm f/3.5 PC-E lens (ISO 400, f/4, 30 sec) (David J Mathre)
New Jersey Autumn Night Sky. Image acquired with a Nikon D3x camera and 24 mm f/3.5 PC-E lens (ISO 400, f/4, 30 sec) (David J Mathre)