Daily Sunspot Evaluation
Observation Sheet Tuesday, 9 February 1993
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)
- 9
- Number of spots (f)
- 76
- Relative number (R)
- 166
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19930209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 15 | 72W | 179 | 74W | 8 | 37 |
| 2 | BXO – 2 | 20 | 68W | 175 | 70W | 4 | 39 |
| 3 | DSO – 7 | 4 | 60W | 167 | 62W | 10 | 31 |
| 4 | EKO – 22 | 15 | 114W | 118 ⚠ | 13W | 13 | 29 |
| 5 | CRO – 5 | 10 | 04W | 111 | 06W | 11 | 28 |
| 6 | BXO – 4 | 4 | 01W | 108 | 03W | 3 | 36 |
| 7 | AX – 2 | -10 | 17W | 124 | 19W | - | 30 |
| 8 | AX – 2 | -9 | 00 | 107 | 02W | 2 | 38 |
| 9 | EKC – 28 | -7 | 22E | 85 | 20E | 13 | 33 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.