Astronomy Picture of the Day · October 11, 2019

Planet Earth at Blue Hour

The Astronomy Picture of the Day for October 11, 2019 is “Planet Earth at Blue Hour,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Matthias Ciprian). The original explanation runs about 163 words.

From the explanation

“Nature photographers and other fans of planet Earth always look forward to the blue hour . That’s the transition in twilight , just before sunrise or after sunset, when the Sun is below the horizon but land and sky are still suffused with beautiful bluish hues of light.”

— APOD editors, October 11, 2019

Read the full explanation on science.nasa.gov

At a glance

Date: October 11, 2019
Type: Image
Credit: Credit: Image Credit & Copyright: Matthias Ciprian
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 163 words

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Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: October 11 in other years

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Source

Astronomy Picture of the Day, October 11, 2019 — science.nasa.gov/image-article/apod-2019-october-11-planet-earth-at-blue-hour

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.