Astronomy Picture of the Day · July 21, 2015

Comet Tails and Star Trails

The Astronomy Picture of the Day for July 21, 2015 is “Comet Tails and Star Trails,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Kevin Parker). The original explanation runs about 169 words.

From the explanation

“After grazing the western horizon on northern summer evenings Comet PanSTARRS (also known as C/2014 Q1) climbed higher in southern winter skies. A visitor to the inner Solar System discovered in August 2014 by the prolific panSTARRS survey, the comet was captured here on July 17.”

— APOD editors, July 21, 2015

Read the full explanation on science.nasa.gov

At a glance

Date: July 21, 2015
Type: Image
Credit: Credit: Image Credit & Copyright: Kevin Parker
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 169 words

All of July 2015 → · 2015 by month → · Full archive since 1995 →

Topics in this entry

Comets

Topics are matched from words in the title and explanation.

On this day: July 21 in other years

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Source

Astronomy Picture of the Day, July 21, 2015 — science.nasa.gov/image-article/apod-2015-july-21-comet-tails-and-star-trails

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.