| RefNo | HS/18/8 | 
| Level | Item | 
| Title | Letter, from Henrik Johan Walbeck to Sir John Herschel, dated at Hamburg | 
| Creator | Walbeck; Henrik Johan (1793-1822) ; Finnish geodesist; astronomer | 
| Recipient | John Frederick William Herschel | 
| Date | 30 July 1820 | 
| Description | Autograph letter signed by sender. Reports recent eclipse observations around the world. | 
| Language | Latin | 
| Extent | 2pp | 
| Format | Manuscript | 
| Place origin | Hamburg, Germany | 
| Origin coordinates | 53.55, 10 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel7792 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |