| RefNo | HS/14/4 |
| Level | Item |
| Title | Letter, from Norman Pogson to Sir John Herschel, dated at Hartwell, Aylesbury |
| Creator | Pogson; Norman Robert (1829-1891); astronomer; Madras Observatory astronomer. |
| Date | 15 April 1860 |
| Description | Autograph letter signed by sender. Has heard that John Frederick William Herschel's son [Alexander] is observing variable stars at Charles Pritchard's school. Gives latest data on these stars. Suggests other variables to observe. Has adopted John Frederick William Herschel's proposal of using Julian day numbers for dating variables in his catalogue of variables. |
| Language | English |
| Extent | 6pp |
| Format | Manuscript |
| Place origin | Hartwell, Aylesbury, Buckinghamshire |
| Origin coordinates | 51.805, -0.851 |
| AccessStatus | Open |
| URLDescription | Also available on Epsilon |
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel1975
|
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); astronomer | 1792 - 1871 |