Daily Sunspot Evaluation
Observation Sheet Thursday, 16 June 1983
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)
- 7
- Number of spots (f)
- 29
- Relative number (R)
- 99
- Observer
- HM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830616.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | DSF – 7 | 18 | 156 | |
| 2 | DAF – 5 | 12 | 158 | |
| 3 | HAX – 1 | -27 | 151 | |
| 4 | AXX – 2 | -10 | 154 | |
| 5 | HSX – 1 | -29 | 155 | |
| 6 | DAI – 6 | -7 | 157 | |
| 7 | DAO – 7 | -13 | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.