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1890

Photograph of the Great Nebula in Orion, 1883

1883

Photograph of the Double Star Cluster (H.VI.33&34) in the constellation of Perseus, taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 4 hours on 13th January 1890 at his observatory & home at Maghull, near Liverpool.

Photograph of the Double Star Cluster (H.VI.33&34) in the constellation of Perseus

1890

Transparency, 10"x8", showing double open cluster in Perseus. N.G.C. 869 and 884, R.A.2h 14m. Dec.+56 degrees 40'. Isaac Roberts, Crowborough 1895, October 12. 20-inch Reflector, exposure 1h.30m.

Transparency, 10"x8", showing double open cluster in Perseus. N.G.C. 869 and 884

1895

Photograph (glass positive) of part of the Heavens (surroundings of Naeta Argus 1892, March 3rd) taken at the Royal Observatory, Cape of Good Hope

Photograph, surroundings of Naeta Argus 1892

1892

Photograph of the Pleides star cluster with nebulosity (M45), taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 4 hours on 8th December 1888 at his observatory & home at Maghull, near Liverpool.

Photograph of the Pleides star cluster with nebulosity (M45)

1888