Starlight pp 215-233 | Cite as

In the Space Between Stars

Part of the Patrick Moore's Practical Astronomy Series book series (PATRICKMOORE)


Another way of defining the photosphere of a star is that it is a layer within the atmosphere of the star, where a photon of a given wavelength has a roughly 50% chance of escaping from the star and heading off into interstellar space. Our “lucky” photon still has a long way to go before it can reach a detector here on Earth, including two major obstacles in its way.


Solar Wind Color Index Radiation Pressure Interstellar Medium Mass Loss Rate 

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.ScotforthUK

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