Astrophotographer Andrew Smadi achieved impressive success by capturing two completely different objects in one frame: the International Space Station (ISS) and the distant gas giant Saturn. This unique photograph, combining near space and the depths of the Solar System, was recently recognized by NASA as Astronomy Picture of the Day.
Smadi said that this shot took two days of careful planning and an 80 km drive to find the perfect location in Federal Way, Washington, USA. Using the Stellarium app and precise astronomical calculations of coordinates, he determined the exact time and place where the ISS’s flight path would briefly intersect Saturn’s visible position in the sky on the morning of July 6. “Proud to say I’m one of just a handful of humans to capture this event,” said the enthusiast.
Scientific oddities
Although the ISS and Saturn appear to be almost the same size in the photo, the reality is striking: they are separated by a colossal distance of 1.4 billion kilometers. This fact clearly demonstrates Saturn’s enormous size. The brightness of the station significantly exceeded the faint glow of the distant planet. Smadi explains that Saturn’s weak light is due to the peculiarities of the physical laws of optics: its intensity rapidly decreases with increasing distance from the Sun.
Technology behind the scenes
To implement his idea, Smadi used powerful instruments: a Celestron Nexstar Evolution 9.25″ telescope combined with a ZWO ASI662MC camera. The final image is the result of processing several frames obtained from a video recording. This made it possible to compensate for the rapid movement of the ISS and enhance the visibility of Saturn.
Smadi’s photo is not just a beautiful shot, but compelling evidence of the capabilities of modern amateur astrophotography, perseverance, and understanding of the physical laws of the cosmos.
Earlier, we reported on how an astrophotographer photographed the ISS against the backdrop of the Sun.
According to petapixel.com
