Tuesday (07-January-2025) — New Jersey

Nine-Years Ago Today. Sunset from the deck of the MV World Odyssey. Semester at Sea. (07-Jan-2016, Pacific Ocean)

Animal Tracks in the Snow

We had a couple of inches of snow yesterday. This morning, I went on a walkabout looking for animal tracks in the snow. I found bird, cat, fox, and rabbit tracks. I was especially interested in finding where the gaps in the deer fence were. In the past some of the larger critters (raccoons and possums) have enlarged these holes to the point where the deer finally got through. In those spots I needed to install a bottom section of plastic-coated wire fence to close the gaps. First a video of where a neighborhood cat gets under the front gate. She has used this as a way to escape being chased by a fox.

Cat tracks in the snow where it gets under the front gate. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Cat tracks in the snow where it gets under the front gate. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Cat tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Cat tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Rabbit tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Rabbit tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Fox tracks in the snow attempting to cross the pond.. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Fox tracks in the snow attempting to cross the pond. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Field mouse tunnel/tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens
Field mouse tunnel/tracks in the snow. Image taken with a Hasselblad X2d camera and 38 mm f/2.5 lens

Animal Tracks in the Snow. Individual images in the slideshow are available in my PhotoShelter Gallery.

Animal tracks in the snow used to identify holes in the fence. Individual images in the slideshow are available in my PhotoShelter Gallery.

Night Sky, Moon, Star Trails, Jet Trails, and Meteor Trails over New Jersey

The night sky started cloud free. I wanted to have the telescopes out but wasn’t really sure how long the sky would remain clear. I set up a Nikon Z9 camera with a 8-15 mm fisheye lens pointed SSE to monitor the sky. Settings for the camera were 15 mm, ISO 800, f/11, and 120 second exposures using the intervalometer with a 4 second delay between exposures. Composites were created using PhotoShop (scripts, statistics, maximum). First image, the sky was relatively clear for the Vespera Pro telescopes to observe the moon. Second image, an 8-minute segment with a meteor trail. Third image, the sky was relatively clear for the Vespera Pro telescopes to observe M42, the Orion nebula. Fourth image, the full night showing lots of clouds passing. I’ve also included a slideshow with 28-minute star trail segments for the night. At the end there is time-lapse video of the night sky.

Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails (with a meteor trail) Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails (with a meteor trail) Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.
Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens.

Star trails slideshow. Individual images are available in my PhotoShelter gallery.

Sunday (15-December-2024) — New Jersey

Five-Years Ago Today. Indoor Hydroponic Snapdragon Flower. (15-December-2019, New Jersey).

Lights at Night Over New Jersey.

The trolls were keeping watch for drones overnight. The sky was partly cloudy, and it was cold out. Conditions were not good for the telescopes being out for the night. The composite image was taken through a back door window looking south. If you click on the image, you can access a larger (11656 x 6556 pixel) view. Over a four-hour period, there were lots of jet trails, maybe three Geminid meteor trails, and some car lights. No drones were observed.

Trolls Searching for Drones. Composite of 838 images taken with a Hasselblad 907x camera and 21 mm f/4 lens (ISO 400, f/11, 16 sec exposures). Images processed with Photoshop (scripts, statistics, maximum) and Capture One.
Trolls Searching for Drones. Composite of 838 images taken with a Hasselblad 907x camera and 21 mm f/4 lens (ISO 400, f/11, 16 sec exposures). Images processed with Photoshop (scripts, statistics, maximum) and Capture One.

Saturday (03-November-2018) — New Jersey

Backyard Nighttime Sky Over New Jersey.

The sky looked relatively clear again, so I put two cameras out to record the night sky. This time I remembered to set the ISO on the D850 camera correctly. I managed to see a couple of small meteor trails (Taurids?).

Star Trails looking South (19:25-03:15). Composite of images taken with a Nikon D810a camera and 19 mm f/4 PC-E lens (ISO 200, 19 mm, f/5.6, 120 sec). Raw images processed with Capture One Pro and Photoshop CC (scripts, statistics, maximum). (David J Mathre)
Star Trails looking South (19:25-03:15). Composite of images taken with a Nikon D810a camera and 19 mm f/4 PC-E lens (ISO 200, 19 mm, f/5.6, 120 sec). Raw images processed with Capture One Pro and Photoshop CC (scripts, statistics, maximum). (David J Mathre)

Star Trails looking Up (19:28-02:29). Composite of images taken with a Nikon D850 camera and 8-15 mm fisheye lens (ISO 800, 10 mm, f/5.6, 30 sec) (David J Mathre)
Star Trails looking Up (19:28-02:29). Composite of images taken with a Nikon D850 camera and 8-15 mm fisheye lens (ISO 800, 10 mm, f/5.6, 30 sec) (David J Mathre)



Individual images from the slideshow can be viewed here.

Six-Years Ago (04-January-2012) — New Jersey

Backyard Winter Night Sky in New Jersey: Star and Meteor Trails.

Winter Night Sky -- Star Trails -- Quadrantids Meteors. Composite of 122 images taken with a Nikon D3x and 24 mm f/1.4 lens (ISO 100, 24 mm, f/2, 59 sec) combined using the Startrails program. (David J Mathre)
Winter Night Sky — Star Trails — Quadrantids Meteors. Composite of 122 images taken with a Nikon D3x and 24 mm f/1.4 lens (ISO 100, 24 mm, f/2, 59 sec) combined using the Startrails program. (David J Mathre)

Five-Years Ago (16-November-2012) — New Jersey

Backyard Autumn Night Sky in New Jersey: Star and Leonid Meteor Trails.

The sky was clear so I put a couple of cameras out with wide-angle lenses to try to capture some Leonid meteor trails.

Late Fall Night Star Trails and Leonid Meteor Trails over New Jersey. Composite of 35 Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Star Trails and Leonid Meteor Trails over New Jersey. Composite of 35 Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)