Astronomy Picture of the Day · September 23, 2011

September's Aurora

The Astronomy Picture of the Day for September 23, 2011 is “September's Aurora,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Yuichi Takasaka / TWAN / www.blue-moon.ca). The original explanation runs about 129 words.

From the explanation

“September’s equinox arrives today at 0905 UT. As the Sun crosses the celestial equator heading south, spring begins in the southern hemisphere and autumn in the north.”

— APOD editors, September 23, 2011

Read the full explanation on science.nasa.gov

At a glance

Date: September 23, 2011
Type: Image
Credit: Credit: Image Credit & Copyright: Yuichi Takasaka / TWAN / www.blue-moon.ca
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 129 words

All of September 2011 → · 2011 by month → · Full archive since 1995 →

Topics in this entry

The Sun Auroras

Topics are matched from words in the title and explanation.

On this day: September 23 in other years

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Source

Astronomy Picture of the Day, September 23, 2011 — science.nasa.gov/image-article/apod-2011-september-23-septembers-aurora

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.