Daily Sunspot Evaluation
Observation Sheet Saturday, 14 February 1998
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)
- 22
- Relative number (R)
- 72
- Observer
- MB
- Reading
- all checks consistent
- File
- 19980214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 1 | 27 | 36E | 22 | 35E | 0.5 | 29 36 |
| 2 | HR – 1 | 34 | 51E | 7 | 50E | 0.5 | 30 31 |
| 3 | HR – 1 | -25 | 60W | 118 | 61E | 0.5 | 22 23 |
| 4 | EKC – 17 | -25 | 23E | 35 | 22E | 12 | 26 24 |
| 5 | HR – 2 | -19 | 43E | 15 | 42E | 2.5 | 22 23 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.