Astronomy Picture of the Day · June 20, 2017

The Massive Stars in Westerlund 1

The Astronomy Picture of the Day for June 20, 2017 is “The Massive Stars in Westerlund 1,” an image. It is credited to Image Credit: ESA / Hubble & NASA. The original explanation runs about 168 words.

From the explanation

“Star cluster Westerlund 1 is home to some of the largest and most massive stars known. It is headlined by the star Westerlund 1-26 , a red supergiant star so big that if placed in the center of our Solar System , it would extend out past the orbit of Jupiter .”

— APOD editors, June 20, 2017

Read the full explanation on science.nasa.gov

At a glance

Date: June 20, 2017
Type: Image
Credit: Credit: Image Credit: ESA / Hubble & NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 168 words

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Topics in this entry

Jupiter Star clusters

Topics are matched from words in the title and explanation.

On this day: June 20 in other years

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Source

Astronomy Picture of the Day, June 20, 2017 — science.nasa.gov/image-article/apod-2017-june-20-the-massive-stars-in-westerlund-1

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.