Daily Sunspot Evaluation
Observation Sheet Friday, 14 April 1989
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)
- 8
- Number of spots (f)
- 76
- Relative number (R)
- 156
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19890414.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 5 | 35 | 44W | 228 | 44W | 7.5 | 182 |
| 2 | BRI – 18 | 17 | 19W | 203 | 19W | 5 | 184 |
| 3 | BXO – 2 | 12 | 41E | 143 | 41E | 2 | 188 |
| 4 | HS – 4 | 15 | 44E | 140 | 44E | 1.5 | 185 |
| 5 | EKI – 15 | 10 | 60E | 124 | 60E | 13.5 | 188 |
| 6 | AX – 1 | -15 | 71W | 255 | 71W | - | 182 |
| 7 | AX – 1 | -29 | 66W | 250 | 66W | - | 183 |
| 8 | EAI – 30 | -20 | 25E | 159 | 25E | 13.5 | 186 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.