Gliese 251, also known as HIP 33226 or HD 265866, is a star located 18.2 light-years away from the Solar System.

[9]: 84  It is located near the boundary with Auriga, 49 arcminutes away from the bright star Theta Geminorum; due to its apparent magnitude of +9.89 it cannot be observed with the naked eye.

[2] The closest star to Gliese 251 is QY Aurigae, which is located 3.5 light years away.

[7] Observations at infrared wavelengths rule out the presence of a circumstellar disk around it.

[12] However, a new study in 2020 using CARMENES data refuted both candidates, as they found that both signals were caused by stellar activity.