Daily Sunspot Evaluation
Observation Sheet Friday, 11 February 2005
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)
- 24
- Relative number (R)
- 114
- Observer
- MS
- Reading
- all checks consistent
- File
- 20050211.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 4 | 6 | 07E | 183 | 04E | 5.2 | 16 |
| 2 | HR – 1 | 18 | 09E | 181 | 06E | ~0.5 | 2 |
| 3 | AX – 1 | 15 | 11E | 179 | 08E | 1 | |
| 4 | AX – 3 | 12 | 12E | 178 | 09E | 1.5 | 23 |
| 5 | HA – 5 | -19 | 09W | 199 | 12W | ~2 | |
| 6 | HR – 1 | -7 | 08W | 198 | 11W | 0.5 | |
| 7 | HK – 4 | -8 | 36E | 154 | 33E | 4 | |
| 8 | HS – 1 | -4 | 53E | 137 | 50E | 2 | |
| 9 | HH – 4 | -8 | 70E | 120 | 67E | ~4.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.