Daily Sunspot Evaluation
Observation Sheet Wednesday, 2 May 1951
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)
- 17
- Relative number (R)
- 67
- Observer
- MH
- Reading
- all checks consistent
- File
- 19510502.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 7 | 0.34 | 202 | |
| 2 | A – 2 | 0.2 | 207 | |
| 3 | J – 2 | 0.68 | 241 | |
| 4 | G – 4 | 0.85 | 244 | |
| 5 | ? – 2 | 0.96 | 268 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.