Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: Atomic-S on 09/05/2011 03:47:21

Title: How long is the solar day?
Post by: Atomic-S on 09/05/2011 03:47:21

If the sun's equator rotates at a different rate than its poles, how long does a day last on the sun?

Title: How long is the solar day?
Post by: yor_on on 11/05/2011 17:12:18

SpaceMath. (http://spacemath.gsfc.nasa.gov/weekly/4Page1.pdf) And it depends on from where you define your point of observation naturally. As the sun is a gas, well it is? it have this weird ability to act like a, ah, gas?

Title: How long is the solar day?
Post by: syhprum on 11/05/2011 21:04:12

Relative to the remote stars the rotation period on the equator is about 25 days while close to the poles it is 36 days.

Title: How long is the solar day?
Post by: Atomic-S on 06/06/2011 04:36:01

Quote

And it depends on from where you define your point of observation naturally.

Well, if you observe it on the sun, then from that viewpoint the sun never sets. Hence, the length of the day must be equal to the lifetime of the sun.