Astronomy Picture of the Day ·

Introducing Comet Leonard

The Astronomy Picture of the Day for November 21, 2021 is “Introducing Comet Leonard,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Dan Bartlett). The original explanation runs about 177 words.

The featured image shows an image of Comet Leonard complete with a green coma and a dust tail. Please see the explanation for more detailed information.
Credit: Image Credit & Copyright: Dan Bartlett Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Here comes Comet Leonard. Comet C/2021 A1 (Leonard) was discovered as a faint smudge in January 2021 when it was out past Mars — but its orbit will take the giant shedding ice-ball into the inner Solar System, passing near both Earth and Venus in December before it swoops around the Sun in early January 2022.”

— APOD editors, November 21, 2021

Read the full explanation on science.nasa.gov

At a glance

Date
November 21, 2021
Type
Image
Credit
Credit: Image Credit & Copyright: Dan Bartlett
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 177 words

All of November 2021 → · 2021 by month → · Full archive since 1995 →

Topics in this entry

The SunVenusMarsComets

Topics are matched from words in the title and explanation.

On this day: November 21 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

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.