How Fast Can Stars Spin? Objects With Extreme Rotation

TL;DR

Stars and other celestial bodies in the Universe spin at different speeds; the fastest spinning star known is VFTS 102, which spins at 2 million km/h, while neutron stars can spin around 700 times a second.

Transcript

Everything in the Universe is spinning. Spinning planets and their spinning moons orbit around spinning stars, which orbit spinning galaxies. It’s spinning all the way down. Consider that fiery ball in the sky, the Sun. Like all stars, our Sun rotates on its axis. You can’t tell because staring at the Sun long enough will permanently damage your ey... Read More

Key Insights

• 🇬🇶 The Sun's rotation varies between its equator and poles, with a slightly faster speed at the equator.
• 🤩 Achenar, a star in the constellation of Eridanus, has a fast rotation and a flattened shape.
• 🤩 VFTS 102, located in the Tarantula Nebula, is the fastest spinning star known, rotating at 2 million km/h.
• 🤩 Neutron stars can rotate around 700 times a second due to their intense gravity.
• 🙂 Black holes can spin at almost the speed of light when actively feeding or interacting with other objects.
• 🙂 The laws of physics prevent anything from spinning faster than the speed of light.
• 🍃 Antimatter has not been found in the Universe, leaving it as a mystery to astronomers.

Questions & Answers

Q: How does the rotation of the Sun differ between its equator and poles?

The rotation of the Sun is faster at its equator, taking 24.47 days to complete a rotation, while its poles take 26.24 days.

Q: What is the fastest spinning star known and how fast does it rotate?

The fastest spinning star known is VFTS 102, which rotates at a speed of 2 million km/h.

Q: What is the approximate size of Achenar, the star with a fast rotation?

Achenar measures about 7.6 times the size of the Sun when measured from pole to pole, while it measures 11.6 times the size of the Sun across its equator.

Q: How fast can neutron stars spin, and why can they rotate so quickly?

Neutron stars can spin around 700 times a second. Their intense gravity allows them to retain their angular momentum, allowing for such rapid rotation.

Q: Can black holes spin faster than stars or neutron stars?

Yes, black holes can spin even faster than stars or neutron stars. When actively feeding or interacting with other objects, they can rotate at nearly the speed of light.

Q: Have astronomers found any evidence of antimatter in the Universe?

So far, astronomers have not found any evidence of antimatter in the Universe, similar to the mysterious disappearance of socks in a dryer.

Q: What is the maximum speed that anything in the Universe can spin?

According to the laws of physics, nothing can spin faster than the speed of light. Black holes come close to this limit but do not exceed it.

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Yes, by supporting Universe Today with a monthly pledge on Patreon, you can enjoy an ad-free experience, access exclusive content, and be part of a community that supports astronomy and space education.

Summary & Key Takeaways

• The Sun rotates on its axis, with its equator taking 24.47 days to complete a rotation, whereas its poles take 26.24 days.

• Achenar, a star located in the constellation of Eridanus, spins once on its axis every 2 days and has a flattened shape.

• VFTS 102, a massive star in the Tarantula Nebula, is the fastest spinning star known, rotating at 2 million km/h.

• Neutron stars, formed from supernovae explosions, have intense gravity and can spin around 700 times a second.