ζ Lupi

Zeta Lupi, a yellow giant, forms the southern-most point in the asterism. It's southwest of alpha two binocular fields: binoculars.

Zeta Lupi is a binocular double (DUN 176): 3.5, 6.7; 252, 71.2".
     The period of the orbit of the companion, a dwarf, has been calculated to be in excess of 68,000 years,

About three degrees south of zeta is the open cluster NGC 5822, several dozen 10th magnitude stars and over a hundred fainters stars spread over a large field.

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1999-2014 by Richard Dibon-Smith.