Daily Sunspot Evaluation
Observation Sheet Thursday, 28 December 2000
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)
- 8
- Number of spots (f)
- 76
- Relative number (R)
- 156
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20001228.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ESC – 17 | 9 | 36W | 301 | 38W | 13 | |
| 2 | HS – 1 | 22 | 11W | 276 | 13W | 1 | |
| 3 | CSO – 4 | 6 | 14E | 251 | 12E | 3 | |
| 4 | CAO – 9 | 30 | 28E | 237 | 26E | 5 | |
| 5 | HA – 2 | -10 | 69W | 334 | 71W | 2 | |
| 6 | BAO – 3 | -11 | 45W | 310 | 47W | 3.5 | |
| 7 | EKO – 29 | -11 | 07E | 258 | 05E | 11 | |
| 8 | EKS – 11 | -6 | 65E | 200 | 63E | 12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.