Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 June 1984
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)
- 3
- Number of spots (f)
- 22
- Relative number (R)
- 52
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19840619.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 1061 | |||||
| 2 | DSC – 18 | -6 | 09W | 24 ⚠ | 12W | 10 | 410 |
| 3 | HSK – 1 | -4 | 22E | 253 ⚠ | 19E | 225 | 410 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.