Hubble's image captures WR 25 and Tr16-244, two massive stars in the Trumpler 16 cluster within the Carina Nebula, 7,500 light-years away. This large Hubble mosaic combines images from Wide Field ...
This plate, with identification number H335H ("Hooker plate 335 by Hubble"), is famous for having led to his discovery of the first Cepheid variable star in M31, which established beyond any doubt ...