Here’s this week’s image for the Where In The Universe Challenge, to test your visual knowledge of the cosmos (late again — sorry!) You know what to do: take a look at this image and see if you can determine where in the universe this image is from; give yourself extra points if you can name the instrument responsible for the image. We’ll provide the image today, but won’t reveal the answer until tomorrow. This gives you a chance to mull over the image and provide your answer/guess in the comment section. Please, no links or extensive explanations of what you think this is — give everyone the chance to guess.
UPDATE: The answer has now been posted below.
This is the Stingray Nebula, as seen by Hubble’s Wide Field and Planetary Camera 2 back in 1996.
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In this image, the bright central star is in the middle of the green ring of gas. Its companion star is diagonally above it at 10 o’clock. A spur of gas (green) is forming a faint bridge to the companion star due to gravitational attraction.
The nebula is as large as 130 solar systems, but, at its distance of 18,000 light-years, it appears only as big as a dime viewed a mile away. The Stingray is located in the direction of the southern constellation Ara (the Altar constellation).