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.

2021 December 15
The picture shows a Comet Leonard from space. 
Also visible are auroras, a meteor, the Earth's atmosphere, stars, and
satellite trails. The image was taken by Origin.Space's Yangwang-1 telescope.
Please see the explanation for more detailed information.

Comet Leonard from Space
Image Credit & Copyright: Zhuoxiao Wang, Yangwang-1 Space Telescope, Origin.Space

Explanation: What does Comet Leonard look like from space? Today's featured image from Origin.Space's Yangwang-1 space telescope shows not only the currently bright comet -- but several other space delights as well. Taken in optical and ultraviolet light, C/2021 A1 (Leonard) is visible with an extended tail near the image center as it appeared five days ago. The Earth is visible on the lower right, while layers of the Earth's atmosphere glow diagonally from the lower left to the upper right. The trails of two satellites can be seen in front of a myriad of distant stars that dot the background on the upper left. The faint bands of light running diagonally from the lower right to the upper left are auroras. Finally, the image also caught a meteor streaking just below the airglow. To see Comet Leonard yourself from the Earth's surface during the next few days, look toward the western horizon just after sunset or just before sunrise.

Tomorrow's picture: open space


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