Daily Sunspot Evaluation
Observation Sheet Friday, 15 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)
- 4
- Number of spots (f)
- 42
- Relative number (R)
- 82
- Observer
- HM
- Reading
- all checks consistent
- File
- 19840615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 12 | -12 | 23W | 91 | 26W | 8 | 106 |
| 2 | CRI – 9 | -8 | 15E | 53 | 42E | 6 | 109 |
| 3 | DKC – 20 | -8 | 45E | 23 | 42E | 11 | 110 |
| 4 | HSX – 1 | -5 | 76E | 352 | 73E | 3 | 111 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.