Daily Sunspot Evaluation
Observation Sheet Wednesday, 17 February 1982
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)
- 9
- Number of spots (f)
- 36
- Relative number (R)
- 126
- Observer
- HM
- Reading
- all checks consistent
- File
- 19820217.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 2 | 70W | 185 | 73W | 2 | 59 |
| 2 | HAX – 2 | 15 | 42W | 157 | 45W | 1.5 | 65 |
| 3 | DAO – 3 | 11 | 06E | 109 | 03E | 4 | 76 |
| 4 | DKI – 11 | 3 | 07E | 108 | 04E | 8 | 73 |
| 5 | HSX – 1 | 4 | 19E | 96 | 16E | 2.5 | 72 |
| 6 | DAI – 12 | 11 | 51E | 64 | 48E | 10 | 74 |
| 7 | HAX – 1 | -8 | 75W | 190 | 78W | 2 | 57 |
| 8 | CAO – 4 | -12 | 54W | 169 | 57W | 7 | 64 |
| 9 | AXX – 1 | -12 | 23E | 92 | 20E | - | 75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.