Thursday, July 9, 2020

APOD - Noctilucent Clouds and Comet NEOWISE

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2020 July 9
See Explanation.  Clicking on the picture will download  the highest resolution version available.

Noctilucent Clouds and Comet NEOWISE
Image Credit & Copyright: Emmanuel Paoly

Explanation: These silvery blue waves washing over a tree-lined horizon in the eastern French Alps are noctilucent clouds. From high in planet Earth's mesosphere, they reflect sunlight in this predawn skyscape taken on July 8. This summer, the night-shining clouds are not new to the northern high-latitudes. Comet NEOWISE is though. Also known as C/2020 F3, the comet was discovered in March by the Earth-orbiting Near Earth Object Wide-field Infrared Survey Explorer (NEOWISE) satellite. It's now emerging in morning twilight only just visible to the unaided eye from a clear location above the northeastern horizon.

Tomorrow's picture: pixels in space


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