[7] Its apparent magnitude ranges from 5.74 to 5.9, making it faintly visible to the naked eye under good observing conditions.

It was originally catalogued as 101 Virginis by Flamsteed due to an error in the position.

[8][9] John R. Percy found it to be "marginally variable" in 1993.

[10] When it was confirmed as a variable star, it was actually within the border of the constellation Boötes and given the name CY Boötis.

[12] CY Boo is listed in the Hipparcos catalogue as a "problem binary", a star which was suspected of being multiple but for which the Hipparcos observations did not give a satisfactory solution.