Astronomy Picture of the Day ·

Treble Clef: Unusual X-ray Hot Radio Source

The Astronomy Picture of the Day for October 19, 2026 is “Treble Clef: Unusual X-ray Hot Radio Source,” an image. It is credited to X-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS–GPS; Radio: ASTRONLOFAR; Image processing: NASA/CXC/SAO/N. Wolk. The original explanation runs about 152 words.

Treble Clef: Unusual X-ray Hot Radio Source
Credit: X-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS–GPS; Radio: ASTRONLOFAR; Image processing: NASA/CXC/SAO/N. Wolk Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Explanation : What is Treble Clef? This unusual radio structure extends over 2 million light-years and resembles a common musical symbol — but has its visible light hidden by our own Milky Way Galaxy.”

— APOD editors, October 19, 2026

Read the full explanation on science.nasa.gov

At a glance

Date
October 19, 2026
Type
Image
Credit
Credit: X-ray: NASA/CXC/INAF-IRA/A. Botteon et al.; Infrared: UKIDSS–GPS; Radio: ASTRONLOFAR; Image processing: NASA/CXC/SAO/N. Wolk
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 152 words

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Topics in this entry

The Milky WayGalaxies

Topics are matched from words in the title and explanation.

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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.