Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 August 1980
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)
- 14
- Number of spots (f)
- 136
- Relative number (R)
- 276
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 5 | 4 | 62W | 192 | 63W | 4 | |
| 2 | CAI – 7 | 11 | 60W | 110 ⚠ | 61W | 5 | |
| 3 | DAI – 23 | 13 | 30W | 160 | 31W | 10 | |
| 4 | CAO – 8 | 16 | 12W | 142 | 13W | 7 | |
| 5 | DAI – 14 | 11 | 01E | 127 | 00 | 7 | |
| 6 | EKI – 28 | 19 | 21E | 109 | 20E | 14 | |
| 7 | CAI – 10 | 15 | 58E | 72 | 57E | 6.5 | |
| 8 | DAI – 5 | -29 | 55W | 185 | 56W | 5.5 | |
| 9 | CAI – 6 | -26 | 34W | 164 | 35W | 3 | |
| 10 | HAK – 1 | -71 | 24W | 154 | 25W | 1.5 | |
| 11 | DAI – 23 | -9 | 17W | 147 | 18W | 7.5 | |
| 12 | HSK – 1 | -11 | 03W | 133 | 04W | 1 | |
| 13 | HSK – 2 | -11 | 01E | 122 ⚠ | 07E | 1 | |
| 14 | AKK – 3 | -71 | 24E | 106 | 23E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.