Daily Sunspot Evaluation
Observation Sheet Thursday, 14 April 1988
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)
- 39
- Relative number (R)
- 99
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880414.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 19 | 30W | 33 ⚠ | 42W | 0.5 | 64 |
| 2 | CAF – 7 | 16 | 05W | 328 | 07W | 8 | 67 |
| 3 | FKC – 18 | 22 | 50E | 273 | 48E | 19 | 71 |
| 4 | HA – 2 | -32 | 23W | 346 | 25W | 1.5 | 66 |
| 5 | HA – 1 | -19 | 08W | 331 | 10W | 0.5 | 68 |
| 6 | CAF – 10 | -14 | 08E | 315 | 06E | 7 | 69 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.