NASAのインスタグラム(nasa) - 9月1日 06時08分

A lucky observation! ?

Close to the central plane of our Milky Way galaxy, our @NASAHubble Space Telescope spotted this little-known nebula billowing out among the bright stars and dark dust clouds that surround it. Unlike many of targets of Hubble, this object has not been studied in detail and its exact nature is unclear.

At first glance it appears to be a small, rather isolated region of star formation, and one might assume that the effects of fierce ultraviolet radiation from bright, young stars probably were the cause of the eye-catching shapes of the gas.

However, the bright, boomerang-shaped feature may tell a more dramatic tale. The interaction of a high-velocity young star with the cloud of gas and dust may have created this unusually sharp-edged, bright arc. Such a reckless star would have been ejected from the distant young cluster where it was born and would travel at 124,000 miles per hour or more through the nebula.

As a part of a “snapshot” survey, this image was taken during observations that are fitted into Hubble’s busy schedule whenever possible - without any guarantee that the observation will actually take place - making it a lucky observation. Since beginning its mission in 1990, Hubble has made more than 1.3 million observations, including this lucky observation, that help us learn more about our solar system.

Credit: NASA, ESA/Hubble and R. Sahai

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