Astronomy Picture of the Day · August 3, 2015

A Proton Arc Over Lake Superior

The Astronomy Picture of the Day for August 3, 2015 is “A Proton Arc Over Lake Superior,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Ken Williams). The original explanation runs about 205 words.

From the explanation

“The setting had been picked out — all that was needed was an aurora. And late last August, forecasts predicted that an otherwise beautiful night sky would be lit up with auroral green .”

— APOD editors, August 3, 2015

Read the full explanation on science.nasa.gov

At a glance

Date: August 3, 2015
Type: Image
Credit: Credit: Image Credit & Copyright: Ken Williams
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 205 words

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

Topics in this entry

Auroras

Topics are matched from words in the title and explanation.

On this day: August 3 in other years

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Source

Astronomy Picture of the Day, August 3, 2015 — science.nasa.gov/image-article/apod-2015-august-3-a-proton-arc-over-lake-superior

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.