Daily Sunspot Evaluation
Observation Sheet Monday, 26 March 1990
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)
- 127
- Relative number (R)
- 227
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19900326.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 6 | 23 | 30W | 330 | 33W | 4.5 | 129 |
| 2 | AX – 1 | 9 | 46E | 254 | 43E | - | 135 |
| 3 | CSI – 7 | 26 | 63E | 237 | 60E | 17 | 136 |
| 4 | FKC – 9 | -34 | 71W | 11 | 74W | 17 | 114 |
| 5 | EKC – 55 | -13 | 34W | 334 | 37W | 15 | 123 |
| 6 | CAI – 19 | -31 | 25W | 325 | 28W | 9.5 | 122 |
| 7 | HA – 5 | -18 | 15W | 315 | 18W | 2.5 | 124 |
| 8 | BRO – 7 | -20 | 03W | 303 | 06W | 6 | 134 |
| 9 | EKO – 17 | -6 | 03W | 303 | 06W | 16 | 126 |
| 10 | HS – 1 | -12 | 73E | 227 | 70E | 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.