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Posted on 06/18/2025 12:08:02 PM PDT by MtnClimber
Explanation: What's that unusual spot on the Moon? It's the International Space Station. Using precise timing, the Earth-orbiting space platform was photographed in front of a partially lit gibbous Moon in 2019. The featured image was taken from Palo Alto, California, USA with an exposure time of only 1/667 of a second. In contrast, the duration of the transit of the ISS across the entire Moon was about half a second. A close inspection of this unusually crisp ISS silhouette will reveal the outlines of numerous solar panels and trusses. The bright crater Tycho is visible on the lower left, as well as comparatively rough, light colored terrain known as highlands and relatively smooth, dark colored areas known as maria. Downloadable apps can tell you when the International Space Station will be visible from your area.
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Now you did it I told you I was the only one to do the steering.
Mahjong has space stations on some of the tiles.
Very cool picture...
That probably explains it
I”m surprised they don’t say what telescope photographer Eric Holland used. The APOD site has a link on “Palo Alto, CA” and (of all things) it takes you to a really nice drone flight by Eric over the Palo Alto Baylands and Duckpond where I’ve hiked many times.
The Foothill College Observatory in next-door Los Altos Hills has an observatory with a 16-inch computer-controlled Schmidt-Cassegrain reflector, but I doubt Eric had access to that for a photo.
Reminds me of 2001: A Space Odyssey.
Wow.
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Someone needs to photoshop a Star Destroyer silhouette approaching the space station silhouette.
I was looking for that info, too. His Instagram page doesnāt have it, either. Anyone who can get a shot like that has certainly done their homework.
Well, that’s close.
Thanks
I’d say the moon had its appendix removed.
“Anyone who can get a shot like that has certainly done their homework.”
Exactly. He knew there was a 0.5 second transit and had to really dial in his setup to get that shot. That wasn’t trivial.
What telescope do you think he used for that shot?
Wow, well, I donāt think it was smaller than 6ā. Itās so color free my first thought is itās a triplet refractor, but it could also be a reflector. But Iām also thinking at least an 8ā SCT, perhaps a C11. I donāt really know. Iām thinking that perhaps he couldāve shortened up his shutter speed a bit more to get a sharper image of the ISS.
Iām really no photographer, so Iām just guessing.š
The Moon looks great. Very sharp, with great detail. He did a great job.
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