Daily Sunspot Evaluation
Observation Sheet Sunday, 25 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)
- 13
- Number of spots (f)
- 157
- Relative number (R)
- 287
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19900325.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 18 | 48W | 1 | 51W | - | 117 |
| 2 | AX – 3 | 17 | 22W | 335 | 25W | 2.5 | 138 |
| 3 | CAO – 6 | 22 | 17W | 330 | 20W | 6 | 129 |
| 4 | BXO – 3 | 9 | 57E | 256 | 54E | 6 | 135 |
| 5 | CSI – 3 | 26 | 74E | 239 | 71E | 14 | 136 |
| 6 | FKI – 9 | -33 | 60W | 13 | 63W | 19 | 114 |
| 7 | AX – 1 | -10 | 32W | 345 | 35W | - | 119 |
| 8 | EAC – 65 | -13 | 20W | 333 | 23W | 15 | 123 |
| 9 | CAI – 20 | -32 | 07W | 320 | 10W | 15 | 122 |
| 10 | HA – 4 | -18 | 01W | 314 | 04W | 1.5 | 124 |
| 11 | CAI – 11 | -19 | 09E | 304 | 06E | 4.5 | 134 |
| 12 | FKO – 30 | -6 | 11E | 302 | 08E | 17 | 136 |
| 13 | ? – 1 | -12 | 85E | 228 | 82E | - | 139 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.