Daily Sunspot Evaluation
Observation Sheet Thursday, 2 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)
- 5
- Number of spots (f)
- 39
- Relative number (R)
- 89
- Observer
- ED
- Reading
- all checks consistent
- File
- 19740502.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 7 | 32E | 230 | |||
| 2 | J – 1 | -4 | 38E | 224 | |||
| 3 | C – 14 | -8 | 63E | 199 | |||
| 4 | C – 13 | -13 | 73E | 189 | |||
| 5 | D – 9 | 7 | 37W | 299 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.