Daily Sunspot Evaluation
Observation Sheet Thursday, 23 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)
- 4
- Number of spots (f)
- 58
- Relative number (R)
- 98
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19840223.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 27 | 35 | 02E | 335 ⚠ | 02E | 13.5 | 28) |
| 2 | DKC – 9 | 11 | 29E | 88 | 29E | 7.5 | 30) |
| 3 | CKF – 11 | -18 | 38W | 155 | 38W | 6 | 29) |
| 4 | ? – 11 | -13 | 70E | 47 | 70E | 9 | 31) |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.