NASAのインスタグラム(nasa) - 4月10日 01時27分

Unique red rectangle nebula, seen by the Hubble Space Telescope, was found ~2,300 light-years away. It acquired its moniker because of its shape and its apparent color when seen in early images from Earth. This strikingly detailed image reveals how, when seen from space, the nebula, rather than being rectangular, is shaped like an X with additional complex structures of spaced lines of glowing gas, a little like the rungs of a ladder.

The star at the center is similar to the sun, but at the end of its lifetime, pumping out gas and other material to make the nebula, and giving it the distinctive shape. It also appears that the star is a close binary that is surrounded by a dense area of dust — both of which may help to explain the very curious shape.

Image credit: ESA/NASA
#NASA #space #hubble #hst #astronomy

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