Daily Sunspot Evaluation
Observation Sheet Wednesday, 7 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)
- 6
- Number of spots (f)
- 96
- Relative number (R)
- 156
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19900307.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAB – 11 | 30 | 43W | 233 | 46W | 11 | 100 |
| 2 | CKO – 14 | 29 | 10E | 180 | 07E | 12 | 102 |
| 3 | AX – 1 | 12 | 47E | 143 | 44E | - | 104 |
| 4 | AX – 3 | -19 | 76W | 266 | 79W | 1 | 95 |
| 5 | CKE – 34 | -14 | 30W | 220 | 33W | 8.5 | 105 |
| 6 | DKI – 33 | -12 | 14E | 176 | 11E | 10 | 103 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.