Originally posted by triplesod
But.. Does our sun rotate in space? If so, how fast? What length would one of its "days" be? By that I obviously mean how many hours for a complete
the sun does rotate in space, like quest said. a day on the sun i think is about 25 and a half days here on earth. if you have a telescope WITH A
you can watch sunspots. they'll take a little longer than 14 days to move across the disk of the sun. DO NOT LOOK AT THE SUN
WITHOUT A SOLAR FILTER!
sorry, i've heard stories of people looking at the sun without one... it means bad news for your eyes, basically.
Am I right in thinking that not all planets spin, only the ones that havent been allowed to slow, settle and stop yet, due to their relatively young
not exactly. all the planets do spin, just some significantly slower than others. here's some data on that day lengths of the planets for you
- 59 Earth days (interesting fact: its orbit is 88 Earth days long, making it have a three days to two years ratio.)
- 243 Earth days (interesting fact: it's year is only 221 days long. also, it spins east to west, unlike any other planet.)
- well, if you don't know this one... :bnghd:
- one day is 24 hours, 37 minutes. one year is about 1.9 Earth years.
- one day is 9 hours, 50 minutes (fastest of all the planets). one year is about 11.9 earth years.
- one day is 10 hours, 14 minutes. one year is about 29.5 earth years. (very interesting fact: right now is the closest saturn has been
in a really long time, dunno the specifics. also, it is giving us the ebst possible view of it's rings in 30 years so go find a telescope or
binoculars and look! this weekend saturn and will be very close to the moon.)
- ah... the butt of a lot of planet jokes... it's day is a little over 17 hours. it's year is about 84 Earth years.
- it's day is about 18.5 hours long, with a year of nearly 165 Earth years. (interesting fact: when voyager II flew by it discovered
the Great Dark Spot, a storm comparable to Jupiter's Great Red Spot. years later though, in hubble images this storm was gone.)
- it's day is 6.4 Earth days. its year is 248 Earth years. (interestng fact: its only moon, Charon, orbit is 6.4 days long, so it's
always in the same part of the sky on the same side of Pluto.)
Maybe you will find these questions laughable but I do not know nearly as much as I probably should about astronemy (though I am eager to learn) and I
am not coy about my ignorance, if I was to be then I would remain ignorant for a long time.
i don't find any questions laughable. i love helping people out when it comes to astronomy, that's why i have the link in my signature. and there's
no such thing as a bad question, so ask away!