Mean galaxy spectra of the 86 classes

Defining templates of galaxy spectra is useful to quickly characterise new obervations and organise data bases from surveys. These templates are usually built from a pre-defined...定义星系光谱（galaxy spectra）模板，有助于快速表征新观测数据，并整理巡天项目所得的数据库。此类模板通常基于预定义的……构建而成。