| Title | Comets | 
| View | Halley's comet (1P/1909 R1 1910 II 1909c) 73:619 (2008-003) | 
| Series | VI: Yerkes Observatory | 
| Description | Halley's comet (1P/1909 R1 1910 II 1909c), tail 7° to 8° long (exposure 40 minutes). | 
| Subject Terms | Halley, Edmond, 1656-1742 | Halley's comet | Comet tails | Astronomical photography | 
| Photographer | Barnard, Edward Emerson, 1857-1923 | 
| Photograph Date | 1910-05-04 | 
| Physical Format | Lantern slides; 5.7 x 7.0 cm | 
| Collection | Archival Photographic Files | 
| Repository | University of Chicago Library, Special Collections Research Center | 
| Image Identifier | apf6-01997 | 
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