Assignment #3

Date Due: November 24, 2005 (Nov 23 Astro 105)

Please answer the following questions as completely as possible and in complete, grammatically correct sentences. If you are asked to perform numerical calculations please show your work. If you use one of the "calculators" contained in the course Web notes please indicate that you have done so.

From the textbook (Note: you MUST use the 8th edition for this)

Review Questions (3 marks each):

  1. Chapter 8: 9, 13
  2. Chapter 9: 2, 5, 8

 

 

Problems (6 marks each)

1

Make a sketch of the HR diagram and show where the 7 bright stars of Orion (that you studied in assignment 2) would be positioned on this diagram. Do the same for the 7 brightest stars in the Pleiades cluster (use The Sky).

2 I am studying a star that has a spectral type A2V and an apparent magnitude of 8.2. Estimate the distance to this star and the parallax.