Daily Sunspot Evaluation
Observation Sheet Saturday, 27 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)
- 7
- Number of spots (f)
- 57
- Relative number (R)
- 127
- Observer
- TA
- Reading
- all checks consistent
- File
- 20010127.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DRI – 7 | 27 | 31W | 261 | 33W | 4.5 | |
| 2 | DSO – 5 | 11 | 46E | 184 | 44E | 3 | |
| 3 | AX – 1 | 18 | 56E | 174 | 54E | 0.5 | |
| 4 | ORO – 5 | -22 | 47W | 277 | 49W | 5.5 | |
| 5 | CSO – 9 | -6 | 43W | 273 | 45W | 7.5 | |
| 6 | CAO – 4 | -16 | 21W | 251 | 23W | 3.5 | |
| 7 | DAC – 26 | -4 | 01E | 229 | 01W | 9 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.