Helen Sawyer Hogg

Helen Sawyer Hogg is the author of "Astrophysik IV: Sternsysteme / Astrophysics IV: Stellar Systems", "Stellar Systems / Sternsysteme" and "The Guide to Amateur Astronomy".

Books by Helen Sawyer Hogg

Stellar Systems /...
Edmonson, Frank K.
Hardback:

The Guide to Amat...
Newton, Jack
Digital download and online: $165.00

The Guide to Amat...
Newton, Jack
Digital download and online:

Astrophysik IV: S...
Edmonson, Frank K.
Paperback: $109.99