Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 October 1981
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)
- 28
- Relative number (R)
- 108
- Observer
- GT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19811027.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 2 | 15 | 09W | 167 ⚠ | 06W | 5 | |
| 2 | HKX – 3 | 14 | 44E | 120 | 41E | 3 | |
| 3 | AXX – 3 | 6 | 59E | 105 | 56E | 1.5 | |
| 4 | ? – 1 | 15 | 80E | 84 | 77E | 2 | |
| 5 | CAI – 8 | -5 | 44W | 208 | 47W | 4 | |
| 6 | CAO – 8 | -26 | 22W | 186 | 25W | 11.5 | |
| 7 | AXX – 1 | -15 | 13E | 151 | 10E | ||
| 8 | AXX – 2 | -12 | 24E | 140 | 21E | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.