Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 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)
- 10
- Number of spots (f)
- 88
- Relative number (R)
- 188
- Observer
- MB
- Reading
- all checks consistent
- File
- 19890426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 5 | 17 | 58W | 86 | 61W | 2.5 | 191 |
| 2 | HA – 5 | 34 | 12W | 40 | 15W | 5 | 195 |
| 3 | AX – 1 | 29 | 08W | 36 | 11W | - | 214 |
| 4 | AX – 1 | 7 | 07W | 35 | 10W | - | 202 |
| 5 | DSO – 6 | 13 | 55E | 333 | 52E | 9 | 198 |
| 6 | AX – 1 | 28 | 66E | 322 | 63E | - | 203 |
| 7 | EKC – 35 | -21 | 36W | 64 | 39W | 12 | 144 |
| 8 | AX – 3 | -13 | 35W | 63 | 38W | 2.5 | 145 |
| 9 | EAE – 18 | -19 | 06W | 34 | 09W | 13 | 152 |
| 10 | CHC – 13 | -19 | 70E | 318 | 67E | 14 | 160 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.