Monday, 21 February 2011

Option E: Astrophysics 1.1- 1.5





3. Mnemonic:
My Very English Mum Just Sum Up Net Profit

5. Define:
-          Asteroid: a small rocky body that drifts around the solar system
-          Meteorite: an asteroid on a collision course with another planet
-          Comet: mixture of rock and ice in very elliptical orbits around the sun
-          Stellar Cluster: group of stars that are physically close to each other in space, created by the collapse of the same gas cloud
-          Constellation: patterns of stars that are not particularly close to each other
-          Light year: 1 light year is defined as the distance light travel in one year

6. Compare distances between stars and between galaxies


Describe motion of constellation over:
1.       1 night: The various constellation and stars are not the same as every night. This is because on any night, the stars constellations ‘rises’ about 4 minutes earlier than on the previous night. For example, the night sky at 10 pm on February 14 will be the same as at 9.54 p.m on February 15th
2.      1 year:

Photo of you and Orion 
(No stars last night)

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