Astronomy Picture of the Day · January 20, 2001

Helios Helium

The Astronomy Picture of the Day for January 20, 2001 is “Helios Helium,” an image. It is credited to Credit: SOHO – EIT Consortium , ESA , NASA. The original explanation runs about 159 words.

From the explanation

“This image of the active Sun was made using ultraviolet light emitted by ionized Helium atoms in the Solar chromosphere . Helium was first discovered in the Sun in 1868, its name fittingly derived from from the Greek word Helios, meaning Sun.”

— APOD editors, January 20, 2001

Read the full explanation on science.nasa.gov

At a glance

Date: January 20, 2001
Type: Image
Credit: Credit: SOHO – EIT Consortium , ESA , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 159 words

All of January 2001 → · 2001 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: January 20 in other years

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Source

Astronomy Picture of the Day, January 20, 2001 — science.nasa.gov/image-article/apod-2001-january-20-helios-helium

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.