Books like The Planets in Our Solar System
Franklyn M. Branley, Kevin O'Malley
The Planets in Our Solar System is 32 pages, about 35 minutes at 250 words a minute.
12 books to read next
How long each takes
13 Planets 1.1 h 
Me and My Place in Space 35 min 
Hello Out There 18 min 
Jupiter 32 min 
Our Solar System 1.3 h 
The Planets 35 min 
Our Stars 26 min 
Destination 35 min 
Nightwatch 3.0 h 
Blue Planet 26 min 
Planets/gb 53 min 
Astronomy 1.3 h Bar height shows length. Estimated at 250 words a minute.