Daily Sunspot Evaluation
Observation Sheet Thursday, 7 July 1983
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)
- 7
- Number of spots (f)
- 68
- Relative number (R)
- 138
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19830707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | -19 | 59W | 347 | 62W | 25 | 183 |
| 2 | AXX – 1 | -14 | 01E | 287 | 02W | - | 189 |
| 3 | EAC – 36 | -20 | 05E | 283 | 02E | 14 | 185 |
| 4 | AXX – 3 | -11 | 09E | 279 | 06E | 1 | 186 |
| 5 | DAI – 22 | -12 | 22E | 266 | 19E | 14 | 187 |
| 6 | AXX – 1 | -13 | 35E | 253 | 32E | - | 190 |
| 7 | HAX – 4 | -13 | 68E | 220 | 65E | 7 | 188 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.