Posted on 02/28/2024 12:48:43 PM PST by MtnClimber
Explanation: How does the sky turn dark at night? In stages, and with different characteristic colors rising from the horizon. The featured image shows, left to right, increasingly late twilight times after sunset in 20 different vertical bands. The picture was taken last month in Syracuse, Sicily, Italy, in the direction opposite the Sun. On the far left is the pre-sunset upper sky. Toward the right, prominent bands include the Belt of Venus, the Blue Band, the Horizon Band, and the Red Band. As the dark shadow of the Earth rises, the colors in these bands are caused by direct sunlight reflecting from air and aerosols in the Earth's atmosphere, multiple reflections sometimes involving a reddened sunset, and refraction. In practice, these bands can be diffuse and hard to discern, and their colors can depend on colors near the setting Sun. Finally, the Sun completely sets and the sky becomes dark. Don't despair -- the whole thing will happen in reverse when the Sun rises again in the morning.
Wow.
Love your pic’s.......
Where’s KC and The Sunshine Band?
~ducking~
It’s my favorite time of the day- that and morning twilight.
The most peaceful times of the day.
Morning light is great for landscape photography.
I’ll remember that, thanks. Right now I’m waiting on delivery of a new camera-
an astronomy dedicated digital camera. It can only take pictures thru a telescope with a computer. Something new to me. I hope to use it on the Moon, Sun, and planets. There gonna be a learning curve, I’m sure. 🔭
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