Astronomy Picture of the Day ·

Analemma over the Callanish Stones

The Astronomy Picture of the Day for September 20, 2026 is “Analemma over the Callanish Stones,” an image. The picture is copyrighted by its creator (Giuseppe Petricca). The original explanation runs about 224 words.

Multiple images of the Sun trace out an analemma curve in the daytime sky above the Callanish stones.
Credit & Copyright: Giuseppe Petricca Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“If you went outside at the same time every day and took a picture that included the Sun, how would the Sun’s position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year.”

— APOD editors, September 20, 2026

Read the full explanation on science.nasa.gov

At a glance

Date
September 20, 2026
Type
Image
Credit
Credit & Copyright: Giuseppe Petricca
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 224 words

All of September 2026 → · 2026 by month → · Full archive since 1995 →

Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: September 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.