Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 June 1988
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)
- 19
- Relative number (R)
- 59
- Observer
- FL
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAH – 14 | 12 | 19W | 244 | 22W | 2.5 | 120 |
| 2 | HK – 1 | 137 | 33E | 152 ⚠ | 70E | 4. | 123 |
| 3 | AR – 1 | -19 | 59W | 284 | 62W | 1 | 118 |
| 4 | HK – 3 | -16 | 72E | 153 | 61E | 0. | 122 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.