SIMP J013656.5+093347

SIMP J013656.5+093347, often called SIMP0136, is a very special object in space that scientists discovered. It is what we call a planetary mass object, which means it is similar in size to planets but not quite big enough to become a star. This object is located about 19.9 light-years from Earth in the constellation Pisces.

One interesting thing about SIMP0136 is that it moves quickly across the sky. Because of something called proper motion, its position changes by about 1.24 arcseconds each year. Scientists use this movement to study objects like this and learn more about how they form and move through space.

SIMP0136 belongs to a group of objects known as spectral class T2.5. This tells us about its temperature and color, which helps astronomers understand what it is made of and how it fits into the larger family of stars, planets, and other objects in space. Studying objects like SIMP0136 helps us learn more about the universe around us.

Physical properties

SIMP J013656.5+093347, also called SIMP0136, is a very small object in space about 19.9 light-years from Earth. In 2017, scientists said it might be as small as 12.7 times the size of Jupiter. It could be a rogue planet, which does not orbit a star, instead of a brown dwarf, a bigger type of object.

Observations in 2018 and 2025 showed that SIMP0136 has auroras, like the northern lights on Earth. These auroras help scientists learn about magnetic fields on planets far from our Solar System. The object also has interesting clouds and weather patterns. Changes in its brightness suggest storms and moving cloud layers in its atmosphere. These patterns were seen using powerful telescopes and show how active even small space objects can be.