Substellar Objects Collection

Artists concept of twin brown dwarfs referred to as 2M 0939
This artists concept shows the dimmest star-like bodies currently known, twin brown dwarfs referred to as 2M 0939. The twins, which are about the same size, are drawn as if viewed from one side

Artists concept of the brown dwarf Gliese 229 b
Artists concept of how the brown dwarf Gliese 229 b might appear from a distance of about a half million miles. Glowing like a charcoal ember

An artists rendition comparing brown dwarfs to stars and planets
This figure shows an artists rendition comparing brown dwarfs to stars and planets. All objects are plotted to the same scale. On the far left is the limb of the Sun

Artists concept of Teide 1 from the surface of a hypothetical Mars-like planet
Artists concept of how Teide 1 might appear from the surface of a hypothetical Mars-like planet. In this image a hypothetical young planet orbits Teide 1 from a distance of about four million miles

Artists concept of brown dwarfs as seen by an interstellar traveler
Artists concept illustrating what brown dwarfs of different types might look like to a hypothetical interstellar traveler who has flown a spaceship to each one

A view across a hypothetical barren alien planet towards a brown dwarf in the sky
View from a small, barren hypothetical planet orbiting obliquely to the plane of massive dust rings surrounding a brown dwarf of about 60 Jupiter masses

A brown dwarf surrounded by a swirling disk of planet-building dust
This artists concept shows a brown dwarf surrounded by a swirling disk of planet-building dust. The Spitzer Space Telescope spotted such a disk around a surprisingly low-mass brown dwarf

A view across a hypothetical primitive alien planet towards a brown dwarf in the sky. This brown dwarf is host to a disk composed primarily of asteroids and boulders

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