Backyard Autumn Nighttime Sky Over New Jersey: Time-lapse Video and Star Trails.
Wide-angle night sky time-lapse video looking south in New Jersey (~600 1 minute images taken with a Nikon D3x and 14-24 mm f/2.8 lens at 15 mm and f/5.6). The moon was from another night (video taken with a Nikon D3s and 600 mm f/4 telephoto lens). The overall video sequence created using Adobe Premiere Pro.
The images were also combined in groups of 100 using the Star Trails program to create the following south view star trails. The orange background is due to clouds being lit from the towns to the south. In the last two images the moon is visible.
Backyard Autumn Nighttime Sky Over New Jersey: Leonid Meteors.
I had two cameras out monitoring the night sky with the hope of catching a Leonid Meteor. Two of the images had small meteor trails. A bit later there was something much brighter. I am not sure if it is a meteor, however it does not have parallel lights or regular strobe flashes like a jet trail. The other possibility would be a satellite trail. The curved trail is due to the fisheye lens. I used DxO to process the image to correct for the fisheye effect (4th/final image).
Late fall night sky over New Jersey with a Leonid Meteor. Image taken with a Nikon D3 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/5.6, 60 sec). Raw image processed with Capture One Pro 6, Nik Define, Photoshop CS5. (David J Mathre)Late fall night sky over New Jersey with a Leonid Meteor. Image taken with a Nikon D3 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/5.6, 60 sec). Raw image processed with Capture One Pro 6, Nik Define, Photoshop CS5. (David J Mathre)Late fall night sky over New Jersey with a Leonid Meteor. Image taken with a Nikon D3 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/5.6, 60 sec). Raw image processed with Capture One Pro 6, Nik Define, Photoshop CS5. (David J Mathre)Late fall night sky over New Jersey with a Leonid Meteor. Image taken with a Nikon D3 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/5.6, 60 sec). Raw image processed with DxO Pro, Nik Define, Photoshop CS5. (David J Mathre)
After nearly two months of rain, rain, and cloudy skies — we finally have been able to see the sun and very blue skies. At night, I’ve taken the opportunity to get night sky images, as well as lunar images through some of my exotic 300, 400, 500, and 600 mm lenses. One of the problems I was having for the overnight time-lapsed images was that the lens would get covered by condensation during the night and ruin the night sky images. ARRG! As the weekend progressed, the temperature rose and the relative humidity decreased. I finally got a full night image set with limited problems with condensation. The first time-lapse video and star trail was recorded with a Nikon D3x camera and 14-24 mm f/2.8 lens @ 14 mm. There was a bit of condensation that affected the end of the video from this lens. The second time-lapse video and star trail image was recorded with a Nikon D3 camera and 16 mm f/2.8 fisheye lens looking north from my deck.
Lessons learned: 1) I need to look into a resistive heater to keep the lenses warm enough to prevent condensation. 2) I didn’t know that the 14-24 mm lens would creep if pointed straight up — during one night the focal length changed from 14 to 18 mm. For the last night, I used Gaffer tape to fix the focal length of the lens at 14 mm. 3) My tripod/heads are not strong enough to prevent movement when I change batteries. Look into an external power supply and not batteries for long overnight image session.
Star Trails – Southern Sky View (19:30-0545). Composite of images taken with a Nikon D3x camera and 14-28 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 119 sec exposures). (David J Mathre)Star Trails – Northern Sky View (19:30-0545). Composite of images taken with a Nikon D3 camera and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/4, 119 sec exposures). (David J Mathre)
Early Early Morning Star Trails. With the continuing clear skies, I set up two cameras to record star trails early this morning. I started at 3:00 AM after the moon set. I was still worried about condensation on the lens. I pointed a Nikon D3 camera with a 16 mm f/2.8 fish-eye lens north, and a Nikon D3x camera with a 14-24 mm f/2.8 lens at 14 mm pointed south. I used some gaffer tape to prevent the focal length lens creep on the 14-24 mm lens that ruined a previous star trails session. The Nikon D3 camera stopped recording after 2 hours. After the fact, I realized that I used a EN-EL4 rather than the higher capacity EN-EL4A battery. The D3x camera with a EN-EL4A battery ran until I went out to get the cameras at sunrise. Unfortunately, condensation on the lens started distorting images after about 5 AM. Both the North and South facing Star Trails ended up about 60 images (2 hours). The really bright trail in both the Northern and Southern view is Jupiter.
North View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3 and 16 mm f/2.8 mm Fisheye lens (ISO 200, 16 mm, f/4, 1 min 59 sec). Composite of 56 images combined using the Startrails program. (David J Mathre)South View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3x and 14-24 mm f/2.8 mm lens (ISO 100, 14 mm, f/4, 1 min 59 sec). Composite of 60 images combined using the Startrails program. (David J Mathre)
