Astronomy Picture of the Day · September 1, 2005

One-Armed Spiral Galaxy NGC 4725

The Astronomy Picture of the Day for September 1, 2005 is “One-Armed Spiral Galaxy NGC 4725,” an image. It is credited to Credit: R. Kennicutt ( Univ. Arizona ), SINGS Team , JPL-Caltech , NASA. The original explanation runs about 119 words.

From the explanation

“While most spiral galaxies, including our own Milky Way , have two or more spiral arms, peculiar galaxy NGC 4725 has only one. In this false-color Spitzer Space Telescope infrared image, the galaxy’s solo spira mirabilis is seen in red, highlighting the emission from dust clouds warmed by newborn stars.”

— APOD editors, September 1, 2005

Read the full explanation on science.nasa.gov

At a glance

Date: September 1, 2005
Type: Image
Credit: Credit: R. Kennicutt ( Univ. Arizona ), SINGS Team , JPL-Caltech , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 119 words

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Topics in this entry

The Milky Way Galaxies

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Source

Astronomy Picture of the Day, September 1, 2005 — science.nasa.gov/image-article/apod-2005-september-1-one-armed-spiral-galaxy-ngc-4725

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.