Daily Sunspot Evaluation
Observation Sheet Tuesday, 14 July 1981
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)
- 113
- Relative number (R)
- 213
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19810714.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 8 | 22 | 64W | 174 | 67W | 8 | |
| 2 | ARX – 3 | 20 | 08W | 118 | 11W | 1 | |
| 3 | DKC – 28 | 110 | 03W | 8.5 ⚠ | |||
| 4 | AXX – 1 | 13 | 41E | 69 | 38E | 0.5 | |
| 5 | DAI – 9 | 15 | 63E | 47 | 60E | 8 | |
| 6 | ARX – 2 | -6 | 69W | 179 | 72W | 1 | |
| 7 | HKC – 21 | -28 | 10E | 100 | 07E | 4 | |
| 8 | EKI – 35 | -8 | 10E | 100 | 07E | 17 | |
| 9 | DAO – 5 | -10 | 62E | 48 | 59E | 4 | |
| 10 | AXX – 1 | -19 | 75E | 35 | 72E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.