Daily Sunspot Evaluation
Observation Sheet Sunday, 5 May 1968
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 8
- Number of spots (f)
- 61
- Relative number (R)
- 141
- Observer
- SM
- Reading
- all checks consistent
- File
- 19680505.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 11 | 18 | 1°E | 343 | |||
| 2 | H – 6 | 19 | 15°E | 328 | |||
| 3 | E – 12 | 20 | 35°E | 309 | |||
| 4 | J – 2 | 17 | 53°E | 291 | |||
| 5 | J – 1 | -14 | 55°W | 39 | |||
| 6 | D – 18 | 16 | 49°W | 35 | |||
| 7 | B – 10 | 9 | 18°W | 2 | |||
| 8 | J – 1 | -19 | 28°W | 18 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.