| Reference number | CLP/8ii/69 |
| Level | Item |
| Title | Letter, regarding the 'obliquity of the ecliptick' from John Machin to unknown recipient |
| Date | 1733 |
| Description | Machin writes on the obliquity of the ecliptic plane, the orbital plane of Earth around the Sun.
Subject: Astronomy
Read to the Royal Society on the 22 February 1733 |
| Language | English |
| Extent | 4p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA7786 | Machin; John (- 1751) | - 1751 |