Astronomy Picture of the Day ·

Thor's Helmet Emission Nebula

The Astronomy Picture of the Day for November 1, 2017 is “Thor's Helmet Emission Nebula,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Adam Block , Mt. Lemmon SkyCenter , U. Arizona). The original explanation runs about 160 words.

Thor's Helmet Emission Nebula
Credit: Image Credit & Copyright: Adam Block , Mt. Lemmon SkyCenter , U. Arizona Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“This helmet-shaped cosmic cloud with wing-like appendages is popularly called Thor ‘s Helmet. Heroically sized even for a Norse god , Thor’s Helmet spans about 30 light-years across.”

— APOD editors, November 1, 2017

Read the full explanation on science.nasa.gov

At a glance

Date
November 1, 2017
Type
Image
Credit
Credit: Image Credit & Copyright: Adam Block , Mt. Lemmon SkyCenter , U. Arizona
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 160 words

All of November 2017 → · 2017 by month → · Full archive since 1995 →

Topics in this entry

Nebulae

Topics are matched from words in the title and explanation.

On this day: November 1 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.