Daily Sunspot Evaluation
Observation Sheet Sunday, 17 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)
- 6
- Number of spots (f)
- 22
- Relative number (R)
- 82
- Observer
- HG
- Reading
- all checks consistent
- File
- 19840617.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 2 | 9 | 11W | 52 | 14W | 1 | 102 |
| 2 | BXO – 2 | 16 | 52E | 350 | 49E | 5.5 | 103 |
| 3 | DAZ – 5 | -11 | 53W | 94 | 56W | 6.5 | 106 |
| 4 | AXX – 2 | -11 | 14W | 52 | 14W | 1.5 | 107 |
| 5 | CKE – 10 | -2 | 16E | 25 | 13E | 10 | 110 |
| 6 | HSX – 1 | -5 | 48E | 354 | 45E | 2 | 111 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.