Astronomy Picture of the Day · October 20, 2009

A Solar Prominence Erupts in STEREO

The Astronomy Picture of the Day for October 20, 2009 is “A Solar Prominence Erupts in STEREO,” an image. It is credited to Credit: STEREO Project , NASA. The original explanation runs about 165 words.

From the explanation

“What does a solar prominence look like in three dimensions? To help find out, NASA launch ed the STEREO satellites to keep a steady eye on the Sun from two different vantage points.”

— APOD editors, October 20, 2009

Read the full explanation on science.nasa.gov

At a glance

Date: October 20, 2009
Type: Image
Credit: Credit: STEREO Project , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 165 words

All of October 2009 → · 2009 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: October 20 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Astronomy Picture of the Day, October 20, 2009 — science.nasa.gov/image-article/apod-2009-october-20-a-solar-prominence-erupts-in-stereo

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.