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The long period variable star U Orionis reaches maximum brightness

this month, and is currently visible in binoculars at around mag.7.5.

It is a strong source of SiO, OH and water vapour maser emission.

The star was discovered as being variable by J.E.Gore in 1885, and

being close to Chi Ori makes it an easy to find object. Its typical range

is mag 6.3 to 12.0 over a period of 368 days.

0.7' west of U Ori is the eclipsing binary star UW Ori.

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