I noticed that the Extrasolar Planets Encyclopedia lists the orbital period of L 98-59 b in days to 7 decimal places. Can astronomers really measure orbital period of exoplanets to greater precision than planets of the solar system?

Here's a screen shot including some other entries, the number of digits varies by object:

screen shot of the Extrasolar Planets Encyclopedia


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.