DV Aquarii is a binary star[10] system in the zodiac constellationofAquarius, near the border with Capricornus. It has a peak apparent visual magnitude of 5.89,[3] which is bright enough to be visible to the naked eye. The distance can be estimated from its annual parallax shiftof11.2 mas,[2] yielding a separation of 291 light years.
This is a detached eclipsing binary system of the Beta Lyrae type. The orbital period for the system is 1.5755 days and the eccentricity is unknown and probably non-zero;[8] the orbital inclination is estimated to be 83.18°±0.11°.[9] During the primary eclipse the magnitude drops to 6.25. It descends to 6.10 with the secondary eclipse (with 6.10 being brighter than 6.25).[3] The pair have been identified as candidate Herbig Ae/Be stars,[14] and catalogued as A-type shell stars.[15]
A magnitude 10.8 star with the designation HD 358087[16] is a common proper motion companion. It is located at an angular separationof129″ and has 78% of the Sun's mass. If it is gravitationally bound to the main system, the orbital period is estimated to be around 611,855 years[10]
This star was a part of the obsolete constellation Norma Nilotica.
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