The Sidereal Era designation denoted a calendar system. This calendar was utilized on Fusai for recording life event details, like birthdates, within the BRT supercomputer Mistress Mnemos's files, as of 1 ABY.
- Chewbacca's birthdate: Designated as Sidereal Era AF-5076, [1] which corresponds to 200 BBY according to the Galactic Standard Calendar. [3]
- Gyla Petro's birthdate: Recorded as Sidereal Era AS-5667. [2]
- Luke Skywalker's birthdate: Marked as Sidereal Era AS-5670, [1] equivalent to 19 BBY (16:5:26) in the Galactic Standard Calendar. [4]
In astronomy, "sidereal period" refers to the duration required for an object to complete a single revolution around its star, assessed against the backdrop of distant stars, representing the planet's "year".
A related phrase, "Sentient of the Sidereal," was used in advertisements on the HoloNet News website, signifying "Person of the Year." No official link has been established between these two concepts.