Space

APOD: October 7, 2026 – Supernova Remnant PA 30

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Briefings

APOD presents Nebula Pa 30, a Type Iax supernova remnant observed with the Gemini North Telescope in Hawaii. Historical records suggest a 'guest star' appeared in 1181, potentially originating from a supernova that triggered the current nebula. The remnant is classified as a Type Iax supernova, likely caused by the merger of two white dwarfs. The central star emits a strong wind creating radial filaments, with pearl-like knots measuring 4 light-days in diameter. This image captures an 845-year-old mystery, though the exact mechanism of the explosion remains unknown.

Key points

• Nebula Pa 30 is a Type Iax supernova remnant observed with the Gemini North Telescope in Hawaii, showing radial filaments and pearl-like knots 4 light-days in diameter.
• Historical records indicate a 'guest star' appeared in the sky in 1181, which is believed to have originated from the supernova that created the current nebula.

Context and limitations

The image was captured by the Gemini North Telescope in Hawaii, and the specific historical records regarding the 1181 'guest star' are not fully verified by Chinese, Japanese, or Arabic astronomers.

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