Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)
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ACO 773 & ACO 782 in Ursa Major, PJ Mahany
ACO 773 & ACO 782 in Ursa Major
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ACO 773 & ACO 782 in Ursa Major

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ACO 773 & ACO 782 in Ursa Major, PJ Mahany
ACO 773 & ACO 782 in Ursa Major
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ACO 773 & ACO 782 in Ursa Major

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Binned 1.5 to 1

ACO 773 has an Abell distance index: 6. Well over a hundred members over a diameter of 26'

It is centered right and is rather congested.

ACO 783 also is rated an Abell distance index: 6 and is comparable in size and extant. They are most likely over 1,300 Megaparsecs in distance. Quite far & quite reddened by the distance.

This one is centered left in the picture. Don't know what the redshifts are.

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ACO 773 & ACO 782 in Ursa Major, PJ Mahany

In these public groups

Celestron RASA
SF Bay Area Imagers