How does someone remember the names of exoplanets?

The IAU does not consider itself as having a monopoly on the naming of celestial objects — anyone can in theory adopt names the way they choose. read more

The name of the parent star and adding a lowercase letter. For example: 51 Pegasi b, where 55 Pegasi is the name of the star, and b refers to the second planet discovered within the system. If the host star is in a binary system (two stars in the solar system), then the lower case letter follows the upper case designation for the star. read more

Naming of exoplanets. The IAU fully supports the involvement of the general public in the naming of astronomical objects, whether directly or through an independent organised vote, in the naming of planetary satellites, newly discovered exoplanets, and their host stars. This follows a well-established tradition for naming Solar System objects. read more