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This article is about d Carinae. For D Carinae, see HD 66591
V343 Carinae (d Car / d Carinae) is a binary star in the constellation Carina. It is approximately 1410 light years from Earth.
V343 Carinae is a blue-white B-type giant with a mean apparent magnitude of +4.31. It is classified as a Beta Cephei type variable star and its brightness varies from magnitude +4.30 to +4.33. It is a spectroscopic binary with an orbital period of 134 days.