Daily Sunspot Evaluation
Observation Sheet Thursday, 6 August 1987
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)
- 2
- Number of spots (f)
- 19
- Relative number (R)
- 39
- Observer
- FL
- Reading
- all checks consistent
- File
- 19870806.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 16 | 75W | 123 | 78W | 1.5 59 | 51 |
| 2 | DAR – 18 | -23 | 04E | 44 | 01E | 7.5 60 | 52 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.