File:Full Moon ISS Transit (34970326924).jpg

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I was able to capture the July full Moon (aka "Thunder Moon") rising earlier in the evening, and then 7 hours later, this: an International Space Station transit of the same full Thunder Moon.

The transit was visible from Cocoa, Florida (not far from where the components of the ISS launched from). And, it lasted a luxurious 1.05 seconds, slower than the .5 second transits I've been capturing (I assume) because the ISS was a greater distance from the viewing location (400-ish km vs. this one at 630km).

I caught it using the 4k video recording on a Canon DSLR (ISO640, 1/1250 and f11), shot through a 400mm lens with a 2x teleconverter. 34 individual frames were extracted, and then I combined them using PhotoShop. Minimal edits were done in Lightroom along the way.

For my uber space nerd and physicist friends, the details of the pass are pasted below. I use calsky.com and transit-finder.com to plan these shots and, frankly, I remain continually amazed that such a finely tuned event can be predicted, much less captured in this detail.

Transit details (source: transit-finder.com): "Sunday 2017-07-09 02:58:22.00 • Lunar transit ISS angular size: 43.81″; distance: 630.76 km Angular separation: 2.9′; azimuth: 206.1°; altitude: 37.4° Center line distance: 0.54 km; visibility path width: 5.77 km Transit duration: 1.05 s; transit chord length: 29.4′ R.A.: 19h 17m; Dec: -19° 49′; parallactic angle: -23.6° ISS velocity: 28.1 ′/s (angular); 5.15 km/s (transverse) ISS velocity: -5.31 km/s (radial); 7.40 km/s (total); Direction of motion relative to zenith: 23.2° Moon angular size: 30.0′; 41.1 times larger than the ISS Moon phase: 99.9%; angular separation from Sun: 177.4°

Sun altitude: -34.9°; the ISS will be in shadow"
Date
Source Full Moon ISS Transit
Author Michael Seeley

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This image was originally posted to Flickr by Michael Seeley at https://flickr.com/photos/76093456@N04/34970326924. It was reviewed on 6 April 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 April 2024

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current09:26, 6 April 2024Thumbnail for version as of 09:26, 6 April 20241,972 × 1,972 (1.43 MB)A1Cafel (talk | contribs)Transferred from Flickr via #flickr2commons

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