Daily Sunspot Evaluation
Observation Sheet Saturday, 30 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)
- 12
- Number of spots (f)
- 83
- Relative number (R)
- 203
- Observer
- WG
- Reading
- all checks consistent
- File
- 19560630.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 3 | 0.37 | 5 | |
| 2 | A – 1 | 0.29 | 19 | |
| 3 | D – 20 | 0.55 | 28 | |
| 4 | C – 12 | 0.54 | 53 | |
| 5 | C – 11 | 0.87 | 56 | |
| 6 | B – 7 | 0.9 | 107 | |
| 7 | H – 3 | 0.95 | 113 | |
| 8 | ? – 1 | 0.99 | 115 | |
| 9 | A – 1 | 0.75 | 116 | |
| 10 | A – 1 | 0.59 | 142 | |
| 11 | C – 21 | 0.56 | 190 | |
| 12 | J – 2 | 0.52 | 234 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.