Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 February 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)
- 26
- Relative number (R)
- 106
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20000201.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 7 | 9 | 10E | 306 | 08E | 5 | |
| 2 | DAI – 11 | 26 | 24E | 292 | 22E | 8 | |
| 3 | DRG – 2 | -38 | 67W | 23 | 69W | 4 | |
| 4 | DRG – 2 | -32 | 67W | 23 | 69W | 7 | |
| 5 | HA – 1 | -17 | 66W | 22 | 68W | 1 | |
| 6 | HS – 1 | -9 | 05E | 311 | 03E | -2 | |
| 7 | AX – 1 | -10 | 11E | 305 | 09E | - | |
| 8 | AX – 1 | -11 | 74E | 242 | 72E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.