Galaxy redshift

Galaxy Redshift Determination by Use of Principal Component Analysis and Cross Correlation

主成份分析和交叉相关的红移测量

In the cosmologist 's preferred distance measure of redshift , which gauges how much light has been stretched in an expanding universe , the galaxy lies at a redshift of about 10.7 .

宇宙学家更倾向于红移的距离测量，计算宇宙的膨胀来判断光波被拉长了多少。这个星系的红移量大约是10.7。