Astronomy Picture of the Day ·

Irregular Galaxy Sextans A

The Astronomy Picture of the Day for December 18, 1999 is “Irregular Galaxy Sextans A,” an image. It is credited to Credit: D. Hunter (Lowell Observatory), Z. Levay (STScI). The original explanation runs about 99 words.

Irregular Galaxy Sextans A
Credit: D. Hunter (Lowell Observatory), Z. Levay (STScI) Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Grand spiral galaxies often seem to get all the glory. Their newly formed, bright, blue star clusters found along beautiful, symmetric spiral arms are guaranteed to attract attention.”

— APOD editors, December 18, 1999

Read the full explanation on science.nasa.gov

At a glance

Date
December 18, 1999
Type
Image
Credit
Credit: D. Hunter (Lowell Observatory), Z. Levay (STScI)
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 99 words

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

Topics in this entry

The Milky WayGalaxiesStar clusters

Topics are matched from words in the title and explanation.

On this day: December 18 in other years

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Source

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.