The star is often subject to lunar occultations, allowing an accurate measurement of its angular diameter.

[4] It radiates about 670 times the solar luminosity from its photosphere at an effective temperature of 3,933 K.[7] The angular diameter, as measured by a lunar occultation, is 3.12±0.06 milliarcseconds.

[1] At the current distance of 163.1 pc (532 light-years), as measured by a Hipparcos parallax of 6.13 milliarcseconds,[5] it gives a physical size of 89.6 R☉.

74 Geminorum has an apparent magnitude of 5.05,[4] making it visible to the naked eye only from locations with dark skies, far from light pollution.

One of these occultations were observed by the SAO RAS 6-m telescope, which allowed the angular diameter of 74 Geminorum to be accurately measured at 3.12±0.06 milliarcseconds.