Daily Sunspot Evaluation
Observation Sheet Tuesday, 30 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)
- 48
- Relative number (R)
- 128
- Observer
- SB0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20010130.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 26 | 75W | 291 | 76W | 3 | |
| 2 | AX – 1 | 6 | 27W | 245 | 30W | ||
| 3 | DAO – 5 | 9 | 05E | 213 | 02E | 5.5 | |
| 4 | CAI – 16 | 15 | 13E | 205 | 10E | 6.5 | |
| 5 | AX – 3 | 7 | 32E | 186 | 29E | 3 | |
| 6 | HA – 1 | 24 | 76E | 142 | 73E | 2 | |
| 7 | EAC – 15 | -4 | 43W | 261 | 46W | 12 | |
| 8 | CAO – 6 | -10 | 44E | 179 ⚠ | 41E | 6.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.