Astronomy Picture of the Day · November 23, 2006

Hydrogen in M33

The Astronomy Picture of the Day for November 23, 2006 is “Hydrogen in M33,” an image. The picture is copyrighted by its creator (Credit & Copyright: Chris Schur). The original explanation runs about 125 words.

From the explanation

“Gorgeous spiral galaxy M33 seems to have more than its fair share of hydrogen. Its inner 30,000 light-years are shown here in an image processed to fully reveal the reddish glow of ionized hydrogen regions ( HII regions ) sprawling along loose spiral arms that wind toward the galaxy’s core.”

— APOD editors, November 23, 2006

Read the full explanation on science.nasa.gov

At a glance

Date: November 23, 2006
Type: Image
Credit: Credit & Copyright: Chris Schur
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 125 words

All of November 2006 → · 2006 by month → · Full archive since 1995 →

Topics in this entry

Galaxies

Topics are matched from words in the title and explanation.

On this day: November 23 in other years

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Source

Astronomy Picture of the Day, November 23, 2006 — science.nasa.gov/image-article/apod-2006-november-23-hydrogen-in-m33

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.