Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 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)
- 6
- Number of spots (f)
- 61
- Relative number (R)
- 121
- Observer
- MH
- Reading
- all checks consistent
- File
- 19510523.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.28 | 87 | |
| 2 | J – 1 | 0.84 | 94 | |
| 3 | G – 14 | 0.29 | 208 | |
| 4 | J – 1 | 0.44 | 221 | |
| 5 | E – 18 | 0.48 | 305 | |
| 6 | E – 26 | 0.35 | 319 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.