Hubble Unveils Hot Details on Young Star FU Orionis

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Artist's concept of early stages of the young star FU Orionis outburst. The star, a bright yellow sphere near the center, and its fluffy disk of gas and dust are slightly tilted, extending from the top left corner to the bottom right. The swirling disk is bright yellow close to the star and gradually transitions to dark orange moving toward the edges of the frame. The top left and right corners reveal a black, starless background.

An artist's concept of the early stages of the young star FU Orionis (FU Ori) outburst, surrounded by a disk of material.

Credits:

NASA-JPL, Caltech

In 1936, astronomers saw a puzzling event in the constellation Orion: the young star FU Orionis (FU Ori) became a hundred times brighter in a matter of months. At its peak, FU Ori was intrinsically 100 times brighter than our Sun. Unlike an exploding star though, it has declined in luminosity only languidly since then.

Now, a team of astronomers has wielded NASA's Hubble Space Telescope

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