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The Stingray Nebula, catalogued as Henize 1357, is located in the southern constellation Ara (the Altar). It is the youngest planetary nebula known.

In this picture taken by the Hubble Space Telescope, a bright central star can be seen in the midst of green gas. Its companion star is shown diagonally at 10 o’clock. The curved red lines correspond to gases that have been heated up by a 'shock', caused by the central star’s stellar wind hitting the walls of the gas bubbles. The colours shown are the actual colours emitted by nitrogen (red), oxygen (green), and hydrogen (blue).

The Stingray Nebula is 130 times the size of our Solar System. But since it is 18,260 light years away from us, it appears as small as a 10¢ coin viewed from a mile away.

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The Stingray Nebula, Hen 1357