Q star

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Science and technology

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What Wikipedia says

A Q-star, also known as a grey hole, is a hypothetical type of compact, heavy neutron star with an exotic state of matter. Such a star can be smaller than the progenitor star's Schwarzschild radius and have a gravitational pull so strong that some light, but not all light, can escape.

Excerpt from the Wikipedia article “Q star”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Pluto2181930, CC BY 4.0, via Wikimedia Commons.