Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 June 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)
- 12
- Number of spots (f)
- 140
- Relative number (R)
- 260
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19890613.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 7 | 19 | 54W | 166 | 56W | 8 | 293 |
| 2 | BXO – 4 | 15 | 34W | 146 | 36W | 7 | 293 |
| 3 | FKC – 47 | 19 | 21E | 91 | 19E | 19.5 | 293 |
| 4 | DAI – 11 | 13 | 33E | 79 | 31E | 7.5 | 293 |
| 5 | AX – 1 | 9 | 47E | 65 | 45E | - | 293 |
| 6 | AX – 1 | 26 | 55E | 57 | 53E | - | 293 |
| 7 | HA – 1 | 26 | 64E | 48 | 62E | 2 | 293 |
| 8 | AX – 2 | 15 | 67E | 45 | 65E | 1 | 293 |
| 9 | EAI – 11 | -13 | 55W | 167 | 57W | 14.5 | 293 |
| 10 | HA – 9 | -17 | 32W | 144 | 34W | 4 | 293 |
| 11 | FAO – 18 | -12 | 15E | 97 | 13E | 16.5 | 293 |
| 12 | FKC – 28 | -23 | 40E | 72 | 38E | 21 | 293 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.