Daily Sunspot Evaluation
Observation Sheet Friday, 12 January 2001
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)
- 88
- Relative number (R)
- 168
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20010112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 8 | 50W | 118 | 52W | ~2.5 | |
| 2 | HS – 7 | 19 | 20W | 88 | 22W | 3.5 | |
| 3 | DAC – 10 | 9 | 20W | 88 | 22W | ~9.5 | |
| 4 | HS – 2 | 11 | 07W | 75 | 09W | ~1 | |
| 5 | EAC – 48 | 12 | 10E | 58 | 08E | 14.5 | |
| 6 | DAC – 12 | 15 | 35E | 33 | 33E | 9.5 | |
| 7 | CAO – 5 | -14 | 45W | 113 | 47W | ~13.5 | |
| 8 | AX – 1 | -7 | 05E | 63 | 03E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.