Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 March 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)
- 35
- Relative number (R)
- 95
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510328.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 7 | 0.49 | 80 | |
| 2 | C – 2 | 0.97 | 234 | |
| 3 | J – 2 | 0.82 | 253 | |
| 4 | A – 2 | 0.86 | 258 | |
| 5 | H – 3 | 0.75 | 258 | |
| 6 | C – 19 | 0.28 | 340 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.