|
Date: |
|
Description: | Photograph of 'Praesepe' the beehive star cluster (M44), taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 90 minutes on 13 February 1891 at his observatory & home at Crowborough, Sussex. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | star cluster black-and-white print (photograph) astrophotograph | Temporal: | 1891 | Source: | Science Museum | Creator: | Roberts, Isaac, 1829-1904 | Identifier: | http://collectionsonline.nmsi.ac.uk/grab... | Go to resource |
|
|