Semakan pada 15:36, 1 Oktober 2017 sunting Polar (bincang \| sumb.) Penyelia 53,106 suntingan →‎Tempoh ← Suntingan sebelumnya		Semakan pada 15:43, 1 Oktober 2017 sunting batalkan Polar (bincang \| sumb.) Penyelia 53,106 suntingan →‎Tempoh Teg: Suntingan visual Suntingan berikutnya →
Baris 17: == Tempoh == Masa dari satu rembangan atas ke rembangan seterusnya ialah kira-kira 24 jam, dan antara rembangan atas ke rembangan rendah adalah kira-kira 12 jam. Pergerakan Bumi pada orbitnya dan [[gerakan wajar]] jasad samawi mempengaruhi masa antara rembangan atas berturut-turut. Kerana gerakan matahari yang [[Gerakan wajar\|wajar]] dan [[Gerakan tidak wajar\|tidak wajar]], satu [[hari suria]] (masa antara dua rembangan atas matahari) adalah lebih lama daripada satu [[hari sidereal]] (masa antara dua rembangan mana-mana bintang tetap){{Citation needed\|date=August 2007}}. Perbezaan [[min]] ialah 1/365.24219 kerana Bumi memerlukan 365.24219 hari untuk orbitnya mengelilingi Matahari. (lihat juga [[sidereal day\|hari sidereal]]) The time from one upper culmination to the next is approximately 24 hours, and between an upper to a lower culmination is approximately 12 hours. The movement of the Earth on its orbit and [[proper motion]] of the celestial body affect the time between successive upper culminations. Because of the [[proper motion\|proper]] and [[improper motion\|improper]] motions of the sun, one [[solar day]] (the time between two upper culminations of the sun) is longer than one [[sidereal day]] (the time between two like culminations of any [[fixed star]]){{Citation needed\|date=August 2007}}. The [[mean]] difference is 1/365.24219 because the Earth needs 365.24219 days for its orbit around the Sun. (see also [[sidereal day]]) == Matahari ==

Rembangan: Perbezaan antara semakan