Daily Sunspot Evaluation
Observation Sheet Friday, 14 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)
- 4
- Number of spots (f)
- 17
- Relative number (R)
- 57
- Observer
- FL
- Reading
- all checks consistent
- File
- 19870814.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 2 | 17.5 | 71E | 231 | 68E | 2.66 | 58 |
| 2 | DAS – 5 | -24 | 63E | 239 | 60E | 6.65 | 57 |
| 3 | CSS – 4 | -26 | 17E | 285 | 14E | 4.562 | 59 |
| 4 | CAI – 6 | -31 | 54E | 248 | 51E | 5.564 | 0 56 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.