Daily Sunspot Evaluation
Observation Sheet Thursday, 20 January 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)
- 7
- Number of spots (f)
- 34
- Relative number (R)
- 104
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20000120.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 16 | 38W | 150 | 39W | 2 | |
| 2 | CAO – 8 | 18 | 04W | 116 | 05W | ~4 | HH-8 |
| 3 | CAO – 5 | 12 | 47E | 65 | 46E | 5.5 | |
| 4 | ? – 2 | -16 | 75W | 187 | 76W | 8 | |
| 5 | AX – 1 | -14 | 59W | 171 | 60W | - | |
| 6 | DAI – 7 | -8 | 47W | 159 | 48W | 9 | |
| 7 | EKO – 10 | -18 | 17W | 129 | 18W | 12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.