RIP Lemm.ee o7

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Joined 5 days ago
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Cake day: June 3rd, 2025

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  • Here’s one taken from visable light:
    https://commons.m.wikimedia.org/wiki/File:Daphnis_edge_wave_shadows.jpg#mw-jump-to-license

    (Sorry i haven’t figured out how put an image i to a comment on piefed yet)

    Daphnis, 8 kilometers (5 miles) across, occupies an inclined orbit within the 42-kilometer (26-mile) wide Keeler Gap in Saturn’s outer A ring.

    Measurements of the shadows in this and other images indicate that the vertical structures range between one-half to 1.5 kilometers tall (about one-third to one mile), making them as much as 150 times as high as the ring is thick. The main A, B and C rings are only about 10 meters (about 30 feet) thick. Daphnis itself can be seen casting a shadow onto the nearby ring.

    This image of shadows on the rings and others like it (see PIA11656 and PIA11655) are only possible around the time of Saturn’s equinox which occurs every half-Saturn-year (equivalent to about 15 Earth years).