Gliese 832 b

Gliese 832 b, also known as Gl 832 b or GJ 832 b, is a gas giant. It is about the same size as Jupiter, the largest planet in our solar system. However, Gliese 832 b is not in our solar system. It is very far away, about 16.2 light-years from the Sun.

Gliese 832 b orbits a small, cool star called a red dwarf named Gliese 832. This star is in a part of the sky called the constellation of Grus, which means "the crane." Because it orbits a star that is not our Sun, Gliese 832 b is an exoplanet.

Scientists found Gliese 832 b by noticing that it made its star move a little. By watching this movement, astronomers learned that a large planet was pulling on the star with its gravity. Studying planets like Gliese 832 b helps us understand more about how planets form and what other solar systems might be like.

Orbit

The planet Gliese 832 b takes 10.5 years to go around its star. It stays 3.7 AU away from the star. When it was found, it had the longest orbit of any Jupiter-like planet around a red dwarf star. The star looks as bright from that distance as our Sun would if seen from far away.

Discovery

The planet Gliese 832 b was discovered at the Anglo-Australian Observatory on September 1, 2008. It was found using a method called astrometric observation. This method looks at small changes in the position of its star. Later studies helped confirm details about the planet's orbit. In 2023, studies showed that the planet is close to the size of Jupiter.