Astronomy Picture of the Day · October 23, 2001

Emission and Reflection in NGC 6559

The Astronomy Picture of the Day for October 23, 2001 is “Emission and Reflection in NGC 6559,” an image. It is credited to Credit: Robert Gendler. The original explanation runs about 108 words.

From the explanation

“Bright gas and dark dust permeate the space between stars in a nebula known as NGC 6559 . The gas, primarily hydrogen , is responsible for the diffuse red glow of the emission nebula .”

— APOD editors, October 23, 2001

Read the full explanation on science.nasa.gov

At a glance

Date: October 23, 2001
Type: Image
Credit: Credit: Robert Gendler
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 108 words

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Topics in this entry

Nebulae

Topics are matched from words in the title and explanation.

On this day: October 23 in other years

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Source

Astronomy Picture of the Day, October 23, 2001 — science.nasa.gov/image-article/apod-2001-october-23-emission-and-reflection-in-ngc-6559

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.