Astronomy Picture of the Day · April 22, 1999

Where is Upsilon Andromedae?

The Astronomy Picture of the Day for April 22, 1999 is “Where is Upsilon Andromedae?,” an image. The picture is copyrighted by its creator (Credit and Copyright: Till Credner & Sven Kohle). The original explanation runs about 136 words.

From the explanation

“Astronomers recently announced the detection of three large planets orbiting the star Upsilon Andromedae – the first planetary system known to orbit a normal star other than our Sun.”

— APOD editors, April 22, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: April 22, 1999
Type: Image
Credit: Credit and Copyright: Till Credner & Sven Kohle
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 136 words

All of April 1999 → · 1999 by month → · Full archive since 1995 →

Topics in this entry

The Sun Andromeda Galaxy Galaxies

Topics are matched from words in the title and explanation.

On this day: April 22 in other years

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Source

Astronomy Picture of the Day, April 22, 1999 — science.nasa.gov/image-article/apod-1999-april-22-where-is-upsilon-andromedae

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.