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Astronomers Highlight Unusual X-ray Hot Radio Source Dubbed Treble Clef

Original: October 19, 2026 Treble Clef: Unusual X-ray Hot Radio Source * Credit: * X-ray: NASA/CXC/INAF-IRA/A. Botteon et al. * In

NASA's Astronomy Picture of the Day for October 19, 2026 features 'Treble Clef', an unusual astronomical object described as an X-ray hot radio source. The image combines X-ray data from NASA's Chandra X-ray Observatory and INAF-IRA, infrared observations from UKIDSS-GPS, and radio data from LOFAR, with processing by NASA/CXC/SAO. The object's shape is said to resemble a treble clef.

Why now: The object's striking resemblance to a musical treble clef in the multi-wavelength image is drawing attention

NASAChandra X-ray ObservatoryINAF-IRALOFARTreble Clef

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Evidence

• October 19, 2026 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 *Text: Jerry Bonnell Explanation : What is Treble Clef? This unusual radio… · grobi@defcon.social · 7

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