To calculate the true field of view of an eyepiece, choose a star near the celestial equator, measure its passage in seconds from one side to the other and multiply by 15.
2007-02-23 14:28:41 · 4 answers · asked by sunflare63 7 in Science & Mathematics ➔ Astronomy & Space
oh, but they can. stars in the middle of the sky travel about 15 degrees every hour due to the motion of the earth ( rate of its siddereal rotation ) additionally, they can be used for navigation, calculating various other units of time ( days, months, years ) and so many things i would have to write several books on the usefulness of stealler objects...including stars.
when we look at stars in the extreme north, in the northern hemisphere, laws for calculation of time become much more complicated. so...use the stars in the middle and notice, they all travel 15 degrees per hour.
2007-02-23 14:40:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Or how about this: to calculate the true rotation rate of the Earth, put the telescope cross hairs on a star. Wait about 23 hours 56 minutes 4 seconds, and see if the star comes around to the cross hairs again. Be sure to hold the telescope steady.
2007-02-23 22:40:58 · answer #2 · answered by morningfoxnorth 6 · 0⤊ 0⤋
Very good suggesion, just ignore that person ahead of me. . .
2007-02-23 22:37:46 · answer #3 · answered by Walking Man 6 · 0⤊ 0⤋
what if i use stars to wipe my 8ss
no seriouslly, yea man that would work, you're like super smart
2007-02-23 22:31:21 · answer #4 · answered by mikedrazenhero 5 · 0⤊ 1⤋