Daily Sunspot Evaluation
Observation Sheet Friday, 10 May 1974
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)
- 6
- Number of spots (f)
- 36
- Relative number (R)
- 96
- Observer
- FA
- Reading
- all checks consistent
- File
- 19740510.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | -13 | 12W | 172 | |||
| 2 | A – 4 | -19 | 22W | 182 | |||
| 3 | C – 23 | -11 | 32W | 192 | |||
| 4 | J – 4 | -6 | 48W | 208 | |||
| 5 | A – 1 | -4 | 61W | 224 | |||
| 6 | J – 1 | -2 | 67W | 227 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.