Daily Sunspot Evaluation
Observation Sheet Saturday, 5 September 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)
- 16
- Number of spots (f)
- 97
- Relative number (R)
- 257
- Observer
- HM
- Reading
- all checks consistent
- File
- 19810905.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 17 | 75W | 204 | 77W | 2 | |
| 2 | ARX – 1 | 16 | 37W | 166 | 39W | ||
| 3 | CAI – 9 | 8 | 06W | 135 | 01W | 5 | |
| 4 | HSX – 3 | 11 | 01E | 128 | 01W | 2 | |
| 5 | BXO – 11 | 28 | 38E | 91 | 36E | 4 | |
| 6 | HKX – 9 | 9 | 70E | 59 | 68E | 1 | |
| 7 | HAX – 1 | 14 | 74E | 55 | 72E | ||
| 8 | EKO – 24 | -12 | 51W | 180 | 49W | 1 | |
| 9 | ARX – 1 | -24 | 20W | 149 | 22W | ||
| 10 | OKI – 17 | -10 | 02W | 131 | 04W | 6 | |
| 11 | DAO – 6 | -6 | 02E | 127 | 00 | 5 | |
| 12 | HHX – 8 | -16 | 07E | 122 | 05E | ||
| 13 | AXX – 3 | -11 | 16E | 113 | 14E | ||
| 14 | AAX – 1 | -19 | 17E | 112 | 15E | ||
| 15 | AXX – 1 | -1 | 70E | 59 | 68E | ||
| 16 | AXX – 1 | -16 | 76E | 53 | 74E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.