Quantcast
Channel: Starship Asterisk*
Viewing all articles
Browse latest Browse all 806

The Bridge: Discuss an Astronomy Picture of the Day • APOD: Contrail Shadow X (2024 Apr 23)

$
0
0
I agree with others here that we are seeing the shadows of the contrails cast down onto the clouds, not up. (I'm not convinced it's even possible to have a contrail shadow cast up onto a cloud... the Sun would have to be on or slightly below the horizon, and I think the directly illuminated cloud would overwhelm any shadow.) In this image, it appears that the Sun is just behind the tall building in the center... not close to the horizon at all. No way that geometry allows for upward directed rays that could cast a shadow from beneath!
from beneath
Image
Right... but relevance to my comments?

Statistics: Posted by Chris Peterson — Tue Apr 23, 2024 2:27 pm — Replies 11 — Views 204



Viewing all articles
Browse latest Browse all 806

Trending Articles