4 ms·
Um, as the Earth to the Sun, what's the length of the Sun's day with respect to the galactic center. If my knowledge of mechanics is correct, given enough time
by throwaway000002 10y ago
Um, as the Earth to the Sun, what's the length of the Sun's day with respect to the galactic center.
If my knowledge of mechanics is correct, given enough time, all days tend to infinity? (Like the moon's day with respect to Earth?)
- Tepix 10y agoNot sure what you mean, but according to https://en.wikipedia.org/wiki/Solar_rotation https://en.wikipedia.org/wiki/Solar_rotation "at the equator the solar rotation period is 24.47 days and almost 38 days at the poles".
- throwaway000002 10y agoAhh, thanks for that. Should have realized that the sun doesn't have a "fixed" surface. It seems that the center, however, has a rotational frequency of about 432nHz which results in a rotation period of 26.8 days. All of these numbers are way faster than I imagined, which means that the length of the "solar year" is still incredibly long in "solar days".
- cyphar 10y agoStar core rotation is actually very interesting physics (it affects oscillations in the star in some very fun ways).