ISS Sun Transit during ARISS contact
Taken by Alessandro Gambaro on June 5, 2026 @
Magenta (MI) - Italy
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Camera Used: Unavailable Unavailable
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Details:
Capturing the ISS darting in front of the Sun is always a heart-pounding challenge that requires absolute timing (the transit lasted just 0.61 seconds!), but this time the event had a completely different feel.
What makes this capture unique is that, at that exact moment, a live ARISS (Amateur Radio on the ISS) contact was taking place on the Space Station!
While the silhouette of the International Space Station crossed our star at an altitude of 421 km, French astronaut Sophie Adenot (from the Columbus module) was speaking live with students from two schools in France (Saint-Rémy and Gueugnon).
Knowing that inside that tiny dark "dot" there was a human conversation happening with Earth in that exact fraction of a second makes the image incredibly thrilling.
Sky-Watcher Heliostar 76Ha (76/630mm)
Camera: ZWO ASI183MM Pro
Exposure: 0.65ms - Gain 150 (24.6 fps)
Transit Data: Distance 490 km - Angular size 56.39" - Duration 0.61s
Photographer's website:
https://www.astrobin.com/users/agambaros/
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