Astronomy Picture of the Day · October 11, 1999

Eta Carinae in X-Rays

The Astronomy Picture of the Day for October 11, 1999 is “Eta Carinae in X-Rays,” an image. It is credited to Credit: Chandra X-ray Observatory, NASA. The original explanation runs about 124 words.

From the explanation

“Eta Carinae is the one of the most luminous star systems in our Galaxy , radiating millions of times more power than our Sun . Eta Carinae is also one of the strangest star systems known, brightening and fading greatly since the early 1800s.”

— APOD editors, October 11, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: October 11, 1999
Type: Image
Credit: Credit: Chandra X-ray Observatory, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 124 words

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Topics in this entry

The Sun Galaxies

Topics are matched from words in the title and explanation.

On this day: October 11 in other years

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Source

Astronomy Picture of the Day, October 11, 1999 — science.nasa.gov/image-article/apod-1999-october-11-eta-carinae-in-x-rays

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.