Daily Sunspot Evaluation
Observation Sheet Sunday, 4 April 1982
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)
- 13
- Number of spots (f)
- 52
- Relative number (R)
- 182
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19820404.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 19 | 86W | 312 | 87W | 127 | |
| 2 | CAO – 3 | 19 | 40W | 266 | 41W | 4.5 | 131 |
| 3 | BRO – 3 | 12 | 32W | 258 | 33W | 2 | 146 |
| 4 | BRO – 4 | 8 | 25E | 201 | 24E | 3.5 | 149 |
| 5 | DAI – 6 | 4 | 37E | 189 | 36E | 3.5 | 137 |
| 6 | HAX – 1 | 7 | 63E | 163 | 62E | 2 | 142 |
| 7 | HAX – 3 | 9 | 74E | 152 | 73E | 5.5 | 141 |
| 8 | HSX – 1 | -15 | 73W | 299 | 74W | 2 | 126 |
| 9 | AXX – 2 | -12 | 34W | 260 | 35W | 0.5 | 147 |
| 10 | CAI – 8 | -9 | 06W | 232 | 07W | 6 | 145 |
| 11 | DAC – 17 | -19 | 11E | 215 | 10E | 10.5 | 138 |
| 12 | HAX – 2 | -13 | 67E | 159 | 66E | 4 | 142 |
| 13 | ARX – 1 | -19 | 74E | 152 | 73E | 2 | 139 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.