Circles
| Type | Labelled | Style | Notes | 
|---|---|---|---|
| Equator | Plain line. | ||
| Tropic of Cancer | Plain line. | ||
| Tropic of Capricorn | Plain line. | 
| Tympan | 1b | 
| Type | Labelled | Style | Notes | 
|---|---|---|---|
| Equator | Plain line. | ||
| Tropic of Cancer | Plain line. | ||
| Tropic of Capricorn | Plain line. | 
| Type | Labelled | Description | 
|---|---|---|
| Meridian line | ||
| Horizon rectus |