What is the radius of a brown dwarf?

Brown dwarfs are objects with masses 13–80 times the mass of Jupiter but roughly the same radius (0.7–1.4 Jupiter radii).

Do brown dwarfs have habitable zones?

A Habitable Zone exists around the majority of brown dwarfs. It is not a conventional zone. However, if we took a brown dwarf into Solar System and placed it between Uranus and Neptune, and the planet was warm enough and had liquid water, solar light should be enough for plants to survive on it.

How old is a brown dwarf?

Scientists estimate that The Accident is between 10 billion and 13 billion years old, which is at least double the average age of other known brown dwarfs. This age, in turn, suggests that the brown dwarf formed when the Milky Way was much younger and had a different chemical makeup.

Who discovered the first brown dwarf?

Teide 1 was discovered in images collected by the IAC team on 6 January 1994 using the 80 cm telescope (IAC 80) at Teide Observatory and its spectrum was first recorded in December 1994 using the 4.2 m William Herschel Telescope at Roque de los Muchachos Observatory (La Palma).

Can a brown dwarf orbit a star?

Astronomers have spotted a brown dwarf in images of a nearby sun-like star. A brown dwarf about 65 times the mass of Jupiter orbits a sun-like star 57.7 light-years from Earth. Less than 58 light-years from Earth, a brown dwarf orbits a star much like our own sun. (In fact, some brown dwarfs don’t orbit stars at all.)

What is the size of a brown dwarf planet?

The size of a brown dwarf is comparable to a very large gas planet (5-10 times that of Jupiter). Although it is unusual for a Jupiter-sized planet to orbit a brown dwarf, there could be two sub-brown dwarfs, rather than a planet, existing together.

How far away from a brown dwarf is a habitable zone?

Based on their average energy output, a habitable zone should be at maximum 5 million km away from such brown dwarfs. At that distance, the effect of a flare would be catastrophic. L and T-class brown dwarfs have a dim, red light. To have a better idea how their light looks like, their light output is similar to a burning cigarette.

What is the temperature of a brown dwarf star?

There is not a consensus on which stars should be included in this classification. Typically very cool, these dwarfs have a temperature of less than 300 K. The size of a brown dwarf is comparable to a very large gas planet (5-10 times that of Jupiter).

How are brown dwarfs formed?

Brown dwarfs might form in a similar way to stars: from a cloud of gas and dust. But in the case of brown dwarfs, the cloud is too small to make a full star. Some of them orbit around a host star, so they were created like planets. In either case, the collision of matter collided should have generated enough heat to start a nuclear reaction.