Pollux b is calculated to have a mass at least 2.3 times that of Jupiter.

Announced on June 16 2006, the confirmation of the suspected extrasolar planet Pollux b was finally detected.

On the other hand, it should be noted that the companion to the star Pollux postulated in the 1993 paper has since been confirmed (see Pollux b).

His achievements have included discovering the extrasolar planets Pollux b, Epsilon Eridani b and HD 13189 companion.