Robert McNees on Nostr: The first known photo of the Andromeda galaxy, at the time thought to be a nebula, ...
The first known photo of the Andromeda galaxy, at the time thought to be a nebula, was taken by astronomer Isaac Roberts OTD in 1888.
The image, captured with his 20" reflector, reveals a clear spiral structure. But scientists assumed M31 was a gas cloud within our galaxy.
Image: Isaac Roberts
Published at
2023-12-29 23:30:47Event JSON
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