AST101H1 Lecture Notes - Lecture 4: Northern Hemisphere, Angular Diameter

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST101H1
• Professor: Bryan Gaensler

Document Summary

Night sky: on the darkest nights, one can identify about 3000, in the city very few. Milky way: on a very dark night away from the city, the glow is from many many stars. Constellation: when we look at the sky, we can imagine shapes. Would the constellations look the same from pluto as they do from earth: they are exactly the same, there are tiny (unnoticeable) differences, they are quite different (but mostly recognizable) D. they are totally different: you can"t see constellations from. The earth rotates around an axis going through the north and south poles. That axis points (nearly) at the star polaris. Therefore, polaris (nearly) doesn"t move on the sky. If you were at the north pole (at night), you find. What causes seasons: the sun is higher in the sky in june/july in the northern hemisphere (but lower in the.