Commons Attribution-Share Alike 3.0 truetrue English The constellation Hydra (labelled) as seen with the naked eye object has role: photographer author
English Hydra A is a galaxy cluster that is 840 million light years from Earth (redshift = .054). The cluster gets its name from the strong radio source
following license: English Mules of Hydra author name string: HydraIsle Wikimedia username: HydraIsle URL: https://commons.wikimedia.org/wiki/User:HydraIsle
license: English Hydra Island shores author name string: HydraIsle Wikimedia username: HydraIsle URL: https://commons.wikimedia.org/wiki/User:HydraIsle
English Hydra determination method: SHA-1 described at URL: https://www.iau.org/public/images/detail/hya URL: https://www.iau.org/static/archives/images/large/hya