**List of corrections**

Here is a list of corrections that have been suggested so far.

Every time a correction is found, the book is usually updated within 48 hours, so it is likely that your verison will contain only a small part of the mistakes highlighted here.

**Chapter 7: ****Electromagnetic Radiation**

p. 71: In "rms velocities of molecular nitrogen (506 km/s) and oxygen (473 km/s)", km/s should be m/s - *Harish Krishnakumar *

**Chapter 8: Flux and Magnitude**

p. 95: The height of the atmosphere at zenith distance z should be h/cos(z), instead of h/sin(z) - *O.F.*

**Chapter 14: Exercises Solutions**

p. 159, Ex 2.5: The ecliptic obliquity should be 23 deg 27 prime instead of 27 deg 27 prime - *O.F.*

p.161, Ex 2.12: The latitude of Gianna should be 77.5 deg W (not E) - *O.F.*

p.180, Ex 8.1: Factor of 4 missing at the denominator of the expression for the flux on Earth - *O.F.*