Daily Sunspot Evaluation
Observation Sheet Monday, 16 February 2004
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)
- 12
- Relative number (R)
- 62
- Observer
- MB
- Reading
- all checks consistent
- File
- 20040216.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 2 | 6 | 62W | 335 | 62W | 5.05 | 23 |
| 2 | AX – 4 | 16 | 48W | 321 | 48W | 1.5 | 27 |
| 3 | HS – 2 | 1 | 59E | 214 | 59E | ~1 | 26 |
| 4 | HS – 3 | -8 | 38W | 311 | 38W | ≤2 | 20 |
| 5 | HR – 1 | -17 | 25E | 248 | 25E | 0.5 | 25 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.