SDSS-III是一个继续使用SDSS(Sloan Digital Sky Survey)设备开展四个新的巡天观测的六年计划（2008-2014），其中的BOSS (Baryon Oscillation Spectroscopic Survey）计划将会测量大约10,000 square degrees 天区内的1500000 亮红星系（luminous red galaxies, LRGs）的红移（0.2 < z < 0.8），这个样本远大于以前的SDSS-I、 SDSS-II亮红星系样本，我们将使用SDSS-III每次释放的数据，继续就以下方面进行研究：星系的基本特性与局部环境的相关、星系特性之间的相关、星系的大尺度分布特征。并将得到的结果与以前从SDSS-I、SDSS-II主星系样本(Main galaxy sample)和亮红星系样本得到的结果进行比较。

SDSS-III is a six-year (2008-2014) project which performs four new surveys using SDSS(Sloan Digital Sky Survey)device. In these four interlocking surveys, BOSS (Baryon Oscillation Spectroscopic Survey）will measure redshifts (0.2 < z < 0.8) of 1.5 million luminous red galaxies (LRGs) over 10,000 square degrees. This LRG sample is much larger than ones of SDSS-I and SDSS-II. We will use data released publicly each time, and perform the following studies: correlations between galaxy properties and local environment, correlations between galaxy properties, and large-scale distribution of galaxies. We also compare results of this work with ones of Main galaxy sample and Luminous Red Galaxy sample in SDSS-I and SDSS-II.