Star Trail Photography: Sunset to Sunrise | International Space Station

Star Trail Photography: Sunset to Sunrise | International Space Station

NASA astronaut Don Pettit: "This 30-minute time exposure through orbital night with our new 15mm wide-angle lens was able to capture sunset (on the left) all the way to sunrise (on the right). I have never been able to capture this before but our new fast (14mm f1.4 and 15mm T1.8) wide-angle lenses are opening up observations previously not possible. Visible are circular star trails above the earth limb created not from Earth rotation but from our orbital motion (pitch axis of ISS), cities streaking by (again due to orbital motion), lightning flashes, aurora, atmospheric airglow (both strong green and fainter red). Stay tuned for more of these."

Image details: Nikon Z9, Arri-Zeiss 15mm T1.8 master prime lens, 30 seconds at T1.8 for individual exposures assembled with Photoshop into a composite equivalent to a 30-minute exposure, ISO 200, adjusted for levels, contrast, color, and spot removal. With our current 8-year-old laptops, I cannot perform dark frame subtraction followed by robust denoise operations (would take about 30 hours run time for a single composition where cosmic rays would probably require a re-boot in the process), so clean, finished photographs will have to wait until I return to Earth."

Expedition 72 Updates:

https://blogs.nasa.gov/spacestation/

Expedition 72 Crew

Station Commander: Suni Williams

Roscosmos (Russia): Alexey Ovchinin, Ivan Vagner, Aleksandr Gorbunov

NASA: Butch Wilmore, Don Pettit, Nick Hague

An international partnership of space agencies provides and operates the elements of the International Space Station (ISS). The principals are the space agencies of the United States, Russia, Europe, Japan, and Canada.

Image Date: NASA's Johnson Space Center (JSC)

Release Date: Nov. 7, 2024

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