Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 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)
- 8
- Number of spots (f)
- 95
- Relative number (R)
- 175
- Observer
- ET
- Reading
- all checks consistent
- File
- 19560619.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | E – 18 | 0.35 | 6 | |
| 2 | A – 1 | 0.3 | 44 | |
| 3 | E – 25 | 0.57 | 124 | |
| 4 | D – 8 | 0.37 | 143 | |
| 5 | J – 1 | 0.46 | 180 | |
| 6 | A – 3 | 0.81 | 279 | |
| 7 | C – 10 | 0.62 | 300 | |
| 8 | C – 29 | 0.65 | 312 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.