The Star is a family of US solid-propellant rocket motors originally developed by Thiokol and used by many space propulsion and launch vehicle stages.

[24][25] The Star 27 is a solid apogee kick motor, with the 27 representing the approximate diameter of the stage in inches.

[31] The Star 30 (TE-M-700-2) is a solid fuel motor, with the 30 representing the approximate diameter of the stage in inches.

[38] The Star 31 (also known as Antares 1A or X-254) is a solid fuel motor, with the 31 representing the approximate diameter of the stage in inches.

[45] The "-37" designation refers to the approximate diameter of the titanium fuel casing in inches; Thiokol had also manufactured other motors such as the Star-40 and Star 48.

Internally, Thiokol's designation was TE-M-364 for early versions, TE-M-714 for later ones, and TE-M-783 for a special HTPB model used for FLTSATCOM launches.

Not surprisingly, the "T" prefix stands for Thiokol, and the following letter refers to the company division that developed the rocket motor.

A spin-stabilized or thrust-vectoring version of Star 37 is used as the final stage of the Minotaur V launch vehicle.

The Star 48 is a type of solid rocket motor developed primarily by Thiokol Propulsion, which was purchased by Orbital ATK in 2001.

The "T" prefix stands for Thiokol, and the following letter refers to the company division that developed the rocket motor.

Because geostationary orbit is much more lucrative, the additional stage was needed for the final leg of the journey.

Usually after motor burnout and just prior to satellite release the spin is canceled out using a yo-yo de-spin technique.

[50] It is now set to leave the Solar System, traveling on a similar interstellar trajectory to its companion probe for the indefinite future.

[52] The Star 63 is a solid fuel motor, with the 63 representing the approximate diameter of the stage in inches.