Daily Sunspot Evaluation
Observation Sheet Monday, 3 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)
- 12
- Number of spots (f)
- 85
- Relative number (R)
- 205
- Observer
- HE
- Reading
- all checks consistent
- File
- 19890403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 9 | 21 | 65W | 37 | 68W | 9.75 | 151 |
| 2 | AX – 2 | 23 | 57W | 29 | 60W | 1 | 152 |
| 3 | BXO – 2 | 38 | 47W | 19 | 50W | 5 | 153 |
| 4 | AX – 2 | 17 | 07W | 339 | 10W | 0.5 | 154 |
| 5 | AX – 1 | 38 | 26E | 306 | 23E | - | 155 |
| 6 | AX – 1 | -9 | 00 | 332 | 03W | - | 156 |
| 7 | BXO – 4 | -29 | 04E | 328 | 01E | 3.5 | 157 |
| 8 | FKC – 53 | -19 | 23E | 309 | 20E | 20 | 158 |
| 9 | AX – 5 | -13 | 38E | 294 | 35E | 2.5 | 159 |
| 10 | AX – 3 | -23 | 52E | 280 | 49E | 1 | 160 |
| 11 | AX – 2 | -22 | 63E | 269 | 60E | 1 | 161 |
| 12 | ? – 1 | -15 | 82E | 250 | 79E | - | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.