When is a planet not a planet? : the story of Pluto

题名
: 
When is a planet not a planet? : the story of Pluto

Elaine. Scott

摘要
: 
On August 24, 2006, a group of astronomers made a big announcement: Pluto could no longer be considered a planet. This book explains how advancements in technology have changed our understanding of the universe--and exactly how and why the number of planets in our solar system went from nine to eight.

出版日期范围
: 
2007

物理描述
: 
43 p. : ill. (some col.) ; 26 cm.

内容
: 
Introduction --The wanderers -- Some early astronomers -- Ideas that work--and those that don't -- Pluto's problems -- Finding planets -- What is a planet?

本地注释
: 
This book donated to our library on behalf of Howie Long our dedicated D.A.R.E. Officer, 2010-2011.

程序信息
: 
Accelerated Reader LG 6.6 1.0 116718
 
Sky Science Gr. 6+
 
Science - Grade 9
 
Science

主题词汇
: 
Astronomy.

地理术语
: 
Pluto (Dwarf planet).

摘要
: 
On August 24, 2006, a group of astronomers made a big announcement: Pluto could no longer be considered a planet. This book explains how advancements in technology have changed our understanding of the universe--and exactly how and why the number of planets in our solar system went from nine to eight.

ISBN
: 
9780618898329

出版信息
: 
New York : Clarion Books, c2007.


图书馆排架号资料类型馆藏条码状态
Kildare523.41 SCOBook30138000051161Non-Fiction