Daily Sunspot Evaluation
Observation Sheet Thursday, 11 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)
- 84
- Relative number (R)
- 164
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010111.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 6 | 8 | 36W | 118 | 39W | 2.5 | |
| 2 | DAC – 13 | 9 | 06W | 88 | 09W | 9 | |
| 3 | DAO – 9 | 18 | 05W | 87 | 08W | 3.5 | |
| 4 | DAO – 3 | 10 | 09E | 73 | 06E | ~6 | |
| 5 | FAC – 36 | 12 | 23E | 59 | 20E | 15.5 | |
| 6 | DAC – 11 | 14 | 50E | 32 | 47E | 10 | |
| 7 | HS – 1 | -13 | 37W | 119 | 40W | 1 | |
| 8 | HA – 5 | -7 | 20E | 62 | 17E | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.