Daily Sunspot Evaluation
Observation Sheet Thursday, 9 February 1984
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)
- 6
- Number of spots (f)
- 77
- Relative number (R)
- 137
- Observer
- HG
- Reading
- all checks consistent
- File
- 19840209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 6 | 9 | 03W | 307 | 05W | 7 | 22 |
| 2 | DAI – 16 | -13 | 36W | 340 | 38W | 6 | 21 |
| 3 | AXX – 3 | -14 | 06W | 310 | 08W | 2 | 23 |
| 4 | EKI – 22 | -11 | 04E | 300 | 02E | 14 | 24 |
| 5 | HAX – 1 | -9 | 21E | 283 | 19E | 15 | 25 |
| 6 | DKI – 29 | -13 | 40E | 264 | 38E | 8 | 26 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.