NASA’s Webb reveals wild weather on a mysterious world 20 light-years away.
They publishedNASA’s Webb reveals the wild weather of a mysterious world 20 light-years away
First reportScienceDaily · 17 Oct, 12:26Z
Latest reportThe Times of India · 18 Oct, 06:02Z
Span18 hours · two reports
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Why it matters
What
Researchers identify three recurring atmospheric states, driven by temperature shifts and clouds at different heights.
Why
The pattern reveals an unexpectedly organized atmosphere on a brown dwarf.
Watch
Changes among the three recurring states.
Where the coverage comes from
Perspective mix: 2 center.
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How it unfolded — every article
Summary
- NASA's JWST studied SIMP 0136, a brown dwarf 20 light-years away.
- Researchers found three recurring weather states driven by temperature and clouds.
- Two main factors explain atmospheric variability: temperature changes and vertical cloud structure.
- Study used Principal Component Analysis to decode light variations over rotations.
- Findings suggest a surprisingly organized weather system on a distant world.
Summary
- Astronomers identified white dwarf WD J1330+6435 in Draco about 280 light-years away.
- Green hue arises from sodium-helium interactions under extreme atmospheric conditions.
- Study published in RAS Techniques and Instruments analyzes unusual colours of white dwarfs.
- Researchers used spectral data and colour-perception models to determine appearance.
- The star's temperature is estimated around 4,000 degrees Celsius and is Earth-sized.