| Reference number | HS/17/106 |
| Level | Item |
| Title | Draft letter, from Sir John Herschel to Wilhelm Struve |
| Creator | John Frederick William Herschel |
| Date | 24 January 1825 |
| Description | Draft letter. Asks Wilhelm Struve for account of the performance of his new [Josef] Fraunhofer telescope. Corroborates Wilhelm Struve's double star motion data, except for 70 Ophiuchi, where John Frederick William Herschel and [James] South find no motion. Asks for observational targets and urges care in Wilhelm Struve's observational technique. Mentions Wilhelm Struve's intention to undertake celestial zone with [F. W.] Bessel. Describes [Henry] Kater's 'floating collimator.' |
| Language | English |
| Extent | 5pp |
| Format | Manuscript |
| Place origin | n.p. |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related material | Copy: HS/20/196 |
| Related records in the catalogue | HS/20/196 |
| URL description | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel2994
|
Fellows associated with this archive
| Code | Name | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); astronomer | 1792 - 1871 |