PERGERAKAN BURUJ BELANTIK

PERGERAKAN BURUJ BELANTIKBuruj BelantikSecara kasarnya, ia terdiri daripada tujuh biji bintang utama yang lebih terang daripada bintang lain di sekitarnya. Empat daripadanya membentuk segiempat tepat manakala tiga lagi terletak sederet melintang di tengah-tengah segiempat tepat itu.Oleh sebab Belantik terletak di khatulistiwa samawi iaitu unjuran khatulistiwa Bumi di angkasa, buruj ini boleh dilihat dari mana-mana tempat di hemisfera utara dan selatan. Namun, kedudukannya berubah dengan berubahnya arah pandangan tadi, menyebabkan timbul pelbagai mitos dan nama untuknya. Di sepanjang Khatulistiwa (termasuk di Malaysia), buruj ini kelihatan "terbaring" yakni dalam kedudukan lanskap manakala di hemisfera utara (contohnya AS atau Eropah) ia kelihatan tegak (kedudukan potret) dengan Bintang Tiga Beradik condong ke kanan atas. Di hemisfera selatan (contohnya Australia), ia kelihatan sebaliknya iaitu "tertonggeng" (terbalik atas bawah).Soalan 2 The constellation Orion rises with the three stars of the belt pointing east. Predict what you would observe when it sets?

As time passes, the stars rise in the east (just like the sun). But notice that they rise diagonally, not straight up. The diagonal goes from north (left) to south (right). After a few hours, these same stars will appear high in the southern sky.

Turning to face south, we see that the stars there are moving from left (east) to right (west)Moving east or west makes no difference, except to determine when you see things. If you live farther east, you'll see any given star rise and set sooner; if you live farther west, each star rises and sets later. We compensate for these differences, in an approximate way, by setting our clocks according to different time zones.The explanation for all these effects is simply that the earth's surface is curved. So when you travel to a different location, your horizon tilts with respect to the stars. Today every school child is taught that the earth is (approximately) a sphere. Even in ancient times, however, astute travelers realized that the changes in the stars as you travel north or south must be caused by the curvature of the earth.