Daily Sunspot Evaluation
Observation Sheet Friday, 18 August 2000
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)
- 10
- Number of spots (f)
- 89
- Relative number (R)
- 189
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20000818.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 24 | 38W | 196 | 41W | 0.5 | |
| 2 | EAC – 34 | 25 | 26W | 184 | 29W | ~11 | |
| 3 | HR – 5 | 11 | 16W | 174 | 19W | 1.5 | |
| 4 | CAI – 10 | 9 | 11W | 169 | 14W | ~5 | |
| 5 | HS – 1 | 13 | 17E | 144 | 14E | 1.5 | |
| 6 | AX – 1 | 7 | 24E | 134 | 21E | - | |
| 7 | EAO – 3 | -38 | 58W | 216 | 61W | 11 | |
| 8 | BXI – 17 | -12 | 26W | 184 | 29W | 6.5 | |
| 9 | DAI – 15 | -13 | 16W | 174 | 19W | 9.5 | |
| 10 | HS – 1 | -5 | 03E | 155 | 00 | ~2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.