Daily Sunspot Evaluation
Observation Sheet Friday, 6 July 1990
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)
- 11
- Number of spots (f)
- 116
- Relative number (R)
- 226
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19900706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 12 | 67W | 98 | 70W | 0.5 | 279 |
| 2 | DKC – 15 | 9 | 48W | 79 | 51W | 9.5 | 276 |
| 3 | DKI – 21 | 17 | 14W | 45 | 17W | 7 | 280 |
| 4 | DKI – 12 | 22 | 09E | 22 | 06E | 9 | 286 |
| 5 | ? – 1 | -21 | 76W | 104 | 79W | 1.5 | 266 |
| 6 | FHI – 14 | -12 | 59W | 90 | 62W | 17 | 294 |
| 7 | EAC – 27 | -21 | 43W | 74 | 46W | 12 | 277 |
| 8 | CAI – 16 | -13 | 42W | 73 | 45W | 9.5 | 281 |
| 9 | AR – 2 | -6 | 20W | 51 | 23W | 1 | 288 |
| 10 | CAO – 5 | -17 | 17W | 48 | 20W | 9.5 | 284 |
| 11 | ? – 1 | -15 | 78E | 313 | 75E | 3 | 289 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.