this post was submitted on 12 Mar 2025
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Astronomy

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Confirmed at Last: Barnard's Star Hosts Four Tiny Planets (aasnova.org)
submitted 16 hours ago by [email protected] to c/[email protected]
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[–] [email protected] 7 points 16 hours ago (1 children)

These planets are in remarkably close quarters, with periods of just 2.34, 3.15, 4.12, and 6.74 days.

Speedy little guys

[–] [email protected] 8 points 15 hours ago (3 children)

The furthest of the four is estimated to have an orbital radius of about 0.03 AU. That's 1/10th the size of Mercury's orbit around the sun!

[–] muhyb 4 points 11 hours ago (1 children)

That's a fuel scooping range.

[–] [email protected] 3 points 10 hours ago

Warning, temperature critical.

[–] [email protected] 4 points 11 hours ago (1 children)

At least it's a dry heat.

[–] [email protected] 1 points 10 hours ago

850°C apparent temperature 830°C. Stay hydrated.

[–] [email protected] 2 points 10 hours ago

"Hot planets are waiting for you in the star's neighborhood!"