Daily Sunspot Evaluation
Observation Sheet Wednesday, 14 February 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)
- 5
- Number of spots (f)
- 23
- Relative number (R)
- 73
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19900214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 15 | 12 | 33W | 139 | 35W | 7² | 66 |
| 2 | AX – 1 | 14 | 12W | 118 | 14W | - | 72 |
| 3 | HS – 4 | 19 | 04W | 110 | 06W | 5 | 68 |
| 4 | AX – 1 | -32 | 05W | 111 | 07W | - | 69 |
| 5 | BXO – 2 | -13 | 11E | 95 | 09E | 7.5 | 71 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.