Daily Sunspot Evaluation
Observation Sheet Monday, 23 June 1952
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)
- 5
- Number of spots (f)
- 13
- Relative number (R)
- 63
- Observer
- MH
- Reading
- all checks consistent
- File
- 19520623.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 3 | 0.26 | 36 | |
| 2 | C – 6 | 0.69 | 62 | |
| 3 | ? – 1 | 0.97 | 93 | |
| 4 | J – 1 | 0.52 | 216 | |
| 5 | D – 2 | 0.94 | 244 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.