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Ursa Major

Ursa Major, Latin for 'Great Bear,' is a prominent constellation in the northern sky. It is the third-largest constellation and contains the Big Dipper asterism, which is often used as a navigational aid due to its proximity to Polaris, the North Star.

Source: science.nasa.gov

APODs including "Ursa Major"

The Hubble Deep Field

09/07/2000

The Hubble Deep Field
Image Credit: NASA Astronomy Picture of the Day

Galaxies like colorful pieces of candy fill the Hubble Deep Field - one of humanity's most distant optical views of the Universe. The dimmest, some as faint as 30th magnitude (about four billion times fainter than stars visible to the unaided eye), are very distant galaxies and represent what the Universe looked like in the extreme past, perhaps less than one billion years after the Big Bang. To make the Deep Field image, astronomers selected an uncluttered area of the sky in the constellation Ursa Major (the Big Bear) and pointed the Hubble Space Telescope at a single spot for 10 days accumulating and combining many separate exposures. With each additional exposure, fainter objects were revealed. The final result can be used to explore the mysteries of galaxy evolution and the infant Universe.