Daily Sunspot Evaluation
Observation Sheet Wednesday, 20 June 1956
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)
- 115
- Relative number (R)
- 175
- Observer
- MH
- Reading
- all checks consistent
- File
- 19560620.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | E – 41 | 0.42 | 143 | |
| 2 | B – 9 | 0.32 | 181 | |
| 3 | J – 1 | 0.53 | 203 | |
| 4 | B – 7 | 0.75 | 293 | |
| 5 | E – 34 | 0.78 | 303 | |
| 6 | E – 23 | 0.36 | 334 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.