[1] The telescope operates year-round, except during the August summer-shutdown when maintenance is performed while the weather is poor (Arizona's monsoon season lasts from roughly July through August).

It was used on March 18, 2007 by Bruno Sicardy to view Pluto's occultation of a star in Sagittarius.

[2] The building itself features a very long spiral staircase leading to the telescope and a balcony called "The Bok Walk".

[3] The Bok telescope was used along with the 90 Prime imager to take g-band and r-band observations.

The 90-inch is also fitted with an eyepiece for direct viewing by a human observer, uncharacteristic for telescopes of this size.