Astronomy Picture of the Day ·

Red Nebula, Green Comet, Blue Stars

The Astronomy Picture of the Day for December 20, 2018 is “Red Nebula, Green Comet, Blue Stars,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Tom Masterson ( Grand Mesa Observatory )). The original explanation runs about 155 words.

Red Nebula, Green Comet, Blue Stars
Credit: Image Credit & Copyright: Tom Masterson ( Grand Mesa Observatory ) Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“This festively colored skyscape was captured in the early morning hours of December 17, following Comet Wirtanen’s closest approach to planet Earth . The comet was just visible to the eye.”

— APOD editors, December 20, 2018

Read the full explanation on science.nasa.gov

At a glance

Date
December 20, 2018
Type
Image
Credit
Credit: Image Credit & Copyright: Tom Masterson ( Grand Mesa Observatory )
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 155 words

All of December 2018 → · 2018 by month → · Full archive since 1995 →

Topics in this entry

NebulaeStar clustersComets

Topics are matched from words in the title and explanation.

On this day: December 20 in other years

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Source

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.