Al-Watan WEWE NDIYE AMBAYE HUJAELEWA HYO ARTICLE YA NASA. JUA HALISOGEI, LINAZUNGUKA PALEPALE LILIPO
Unajua kusona Kiingereza?
Umesoma swali na jibu kutoka website ya NASA post namba 57?
Unaelewa nini ukisoma hapa chini?
Does the Sun move around the Milky Way??
Question:
Does the Sun move around the Milky Way?
Answer:
Yes, the Sun - in fact, our whole
solar system -
orbits around the center of the Milky Way
Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make one complete orbit around the Milky Way!
The Milky Way is a spiral galaxy. We believe that it consists of a central
bulge, 4 major arms, and several shorter arm segments. The Sun (and, of course, the rest of our solar system) is located near the Orion arm, between two major arms (Perseus and Sagittarius). The diameter of the Milky Way is about 100,000
light-years and the Sun is located about 28,000 light-years from the Galactic Center. You can see a drawing of the Milky Way below which shows what our Galaxy would look like "face-on" and the direction in which it would spin as viewed from that vantage point. Also shown, is the location of the Sun in the big picture view of our Galaxy.