Daily Sunspot Evaluation
Observation Sheet Tuesday, 9 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)
- 10
- Number of spots (f)
- 28
- Relative number (R)
- 128
- Observer
- SB0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20010109.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 3 | 23 | 23W | 131 | 26W | 7.5 | |
| 2 | HK – 3 | 8 | 09W | 117 | 12W | 3 | |
| 3 | CSO – 2 | 8 | 16E | 92 | 13E | ~3.5 | |
| 4 | HS – 2 | 17 | 20E | 88 | 17E | 2 | |
| 5 | DSC – 5 | 11 | 37E | 71 | 34E | 10 | |
| 6 | EAC – 7 | 12 | 53E | 55 | 50E | 11.5 | |
| 7 | ? – 1 | 14 | 76E | 32 | 73E | ||
| 8 | HA – 1 | -6 | 78W | 30 ⚠ | 81W | 2.5 | |
| 9 | HS – 2 | -14 | 49W | 157 | 52W | 2.5 | |
| 10 | HS – 2 | -14 | 11W | 119 | 14W | 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.