Daily Sunspot Evaluation
Observation Sheet Sunday, 23 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)
- 3
- Number of spots (f)
- 19
- Relative number (R)
- 49
- Observer
- HM
- Reading
- all checks consistent
- File
- 19870823.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 9 | 15 | 57E | 123 | 57E | 3.5.67 | 59 |
| 2 | DAI – 6 | -25 | 58W | 238 | 58W | 6.6.5 | 57 |
| 3 | HKX – 4 | -32 | 65W | 245 | 65W | 7.6.4 | 56 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.