Daily Sunspot Evaluation
Observation Sheet Sunday, 16 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)
- 8
- Number of spots (f)
- 47
- Relative number (R)
- 127
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19890716.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSI – 8 | 11 | 11E | 24 | 10E | 6 | |
| 2 | CAO – 29 | 27 | 15E | 20 | 14E | 12 | |
| 3 | AX – 1 | 19 | 73E | 322 | 72E | - | |
| 4 | AR – 2 | -13 | 50W | 85 | 51W | 0.5 | |
| 5 | HH – 1 | -18 | 42W | 77 | 43W | 3.5 | |
| 6 | BXO – 3 | -5 | 39E | 356 | 38E | 3.5 | |
| 7 | HK – 1 | -12 | 72E | 323 | 71E | 3 | |
| 8 | ? – 2 | -21 | 78E | 317 | 77E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.