Where is the Lockman Hole located in the sky?
Quick Answer
It is a patch of sky in the constellation Ursa Major with unusually little hydrogen gas and dust. Astronomers use it to observe deep into the distant universe.
The Full Story
The Lockman Hole is a region of the sky in Ursa Major that has exceptionally low neutral hydrogen and low dust. Because it is so clear, it is ideal for deep observations in ultraviolet, infrared, and X-ray astronomy. The area was named after astronomer F. J. Lockman, who studied its unusually transparent line of sight. It has become one of the most useful windows for looking at distant galaxies and faint background sources.
Key Facts
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"A tiny clear window in the sky that lets astronomers see billions of years back."
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