Daily Sunspot Evaluation
Observation Sheet Saturday, 22 July 1989
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)
- 143
- Relative number (R)
- 283
- Observer
- YK
- Reading
- all checks consistent
- File
- 19890722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 13 | 74W | 30 | 75W | 2 | |
| 2 | AX – 1 | 31 | 62W | 18 | 63W | - | |
| 3 | CAI – 20 | 30 | 43W | 359 | 44W | 10 | |
| 4 | BKI – 25 | 19 | 06W | 322 | 07W | 8.25 | |
| 5 | AR – 1 | 15 | 03E | 313 | 02E | 0.5 | |
| 6 | AX – 2 | 17 | 15E | 301 | 14E | 0.5 | |
| 7 | HH – 1 | 26 | 27E | 289 | 26E | 3 | |
| 8 | DAC – 19 | 23 | 37E | 279 | 36E | 10 | |
| 9 | DAC – 29 | -12 | 07W | 323 | 08W | 7.5 | |
| 10 | CAI – 10 | -33 | 02W | 318 | 03W | 6.5 | |
| 11 | DKC – 23 | -22 | 07E | 309 | 06E | 9.75 | |
| 12 | BRS – 7 | -20 | 27E | 289 | 26E | 4.5 | |
| 13 | AX – 2 | -19 | 52E | 264 | 51E | - | |
| 14 | ? – 2 | -22 | 80E | 236 | 79E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.