Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 July 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)
- 120
- Relative number (R)
- 260
- Observer
- OG
- Reading
- all checks consistent
- File
- 19800722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 3 | 7 | 43W | 185 | 46W | 4.5 | |
| 2 | DAI – 12 | 19 | 30W | 172 | 33W | 5 | |
| 3 | CAE – 13 | 15 | 14W | 156 | 17W | 7 | |
| 4 | AXI – 8 | 26 | 09W | 151 | 12W | 2.5 | |
| 5 | CAO – 11 | 18 | 08E | 134 | 05E | 10 | |
| 6 | HKX – 4 | -12 | 71W | 213 | 74W | 7 | |
| 7 | AXX – 1 | -24 | 66W | 208 | 69W | - | |
| 8 | BXO – 11 | -25 | 58W | 200 | 61W | 10 | |
| 9 | HKX – 14 | -26 | 28W | 170 | 31W | 7 | |
| 10 | DKC – 12 | -20 | 15W | 157 | 18W | 6 | |
| 11 | BXO – 3 | -25 | 04W | 146 | 07W | 5 | |
| 12 | HKX – 2 | -12 | 18E | 124 | 15E | 4 | |
| 13 | DAI – 25 | -19 | 26E | 116 | 23E | 8 | |
| 14 | ARX – 1 | -8 | 33E | 109 | 30E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.