RV Corvi
RV Corvi is an Eclipsing binaries, eclipsing binary star system in the southern constellation of Corvus (constellation), Corvus. The brightness of the pair regularly ranges in apparent visual magnitude from 8.6 down to 9.16 over a period 18 hours, even the brightest of which is too faint to be visible to the naked eye. The system is located at a distance of approximately 690 light-years from the Sun based on stellar parallax, parallax measurements, and is drifting further away with a radial velocity of ~19 km/s. The variability of this system was discovered by Henrietta Hill Swope, H. H. Swope. In 1942, Irene G. Buttery published an orbital period of 0.74728 days for the system, showing this is an eclipsing binary. It is a near-contact binary with both stars showing the effect of tidal interactions and the facing sides are less than 10% of the orbital separation apart, but are not in contact. One or both stars may show an excess of luminosity on their facin ...
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