| Reference number | HS/25/5/11 |
| Level | Item |
| Title | Copy letter, from Sir John Herschel to Heinrich Christian Schumacher, dated at Slough |
| Creator | John Frederick William Herschel |
| Recipient | Heinrich Christian Schumacher |
| Date | 19 January 1839 |
| Description | Contemporary copy in sender's hand, signed by sender. Compares magnitudes for some specific stars and then comments more generally on that question; John Frederick William Herschel believes he will no longer be able to observe in winter in England as he is too severely afflicted by rheumatism. |
| Language | English |
| Extent | 4pp |
| Format | Manuscript |
| Place origin | Slough, Berkshire |
| Origin coordinates | 51.5082, -0.5954 |
| Digital images | View item on Science in the Making |
| Access status | Open |
| URL description | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel1063
|
Fellows associated with this archive
| Code | Name | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |
| NA5372 | Schumacher; Heinrich Christian (1780 - 1850) | 1780 - 1850 |