Daily Sunspot Evaluation
Observation Sheet Monday, 9 August 1999
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)
- 8
- Number of spots (f)
- 40
- Relative number (R)
- 120
- Observer
- MB
- Reading
- all checks consistent
- File
- 19990809.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 5 | 27 | 85W | 202 | 88W | ? | |
| 2 | HR – 2 | 14 | 65W | 182 | 68W | 2.5 | |
| 3 | HR – 4 | 18 | 64W | 181 | 67W | 0.4 | |
| 4 | HR – 2 | 24 | 12(E) | 105 | 09(E) | 0.1 | |
| 5 | HR – 1 | -14 | 16(W) | 163 | 18(W) | ||
| 6 | KAI – 5 | -30 | 12(W) | 129 | 15(W) | 2.10 | |
| 7 | HA – 5 | -13 | 25(E) | 92 | 22(E) | 0.3 | |
| 8 | DAI – 16 | -16 | 32(E) | 85 | 29(E) | 0.7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.