logoalt Hacker News

divbzeroyesterday at 9:59 PM3 repliesview on HN

The photograph appears to show nightime on Earth with just a sliver of daytime. Beyond cities in Iberia and along the coast of Africa, most of what we can see would be reflected light from the Moon? We are just past full moon on April 1.


Replies

hparadizyesterday at 10:11 PM

1/4 exposure time so 250 ms of light. the light is coming from all the light sources in the universe, plus the moon, plus the sun's rays refracting through the atmosphere which happens even at night.

The natural blue light is coming from the oxygen in the atmosphere but it's so overwhelming in that spot that it turns the light pure white. The red/orangish is coming from particulates and the green/red from aurora. My favorite part I think is the very bottom where you can see the blue light taper off and not overwhelm the camera sensor and you can see the aurora with it. I love this photo so much.

Probably my favorite photo ever now.

show 2 replies
pdonistoday at 1:14 AM

> Beyond cities in Iberia and along the coast of Africa, most of what we can see would be reflected light from the Moon?

Yes, exactly.

tayo42yesterday at 10:22 PM

That's what the caption the article above says