Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 June 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)
- 9
- Number of spots (f)
- 61
- Relative number (R)
- 151
- Observer
- MB
- Reading
- all checks consistent
- File
- 19900606.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 15 | 48W | 117 | 51W | 0.5 | 225 |
| 2 | HS – 1 | 22 | 04W | 73 | 07W | 1.5 | 228 |
| 3 | HK – 15 | 8 | 45E | 24 | 42E | 5.5 | 229 |
| 4 | BXI – 5 | 17 | 51E | 18 | 48E | 5 | 232 |
| 5 | AX – 4 | -19 | 66W | 135 | 69W | 3.5 | 234 |
| 6 | BRI – 13 | -12 | 08W | 75 | 11W | 6.5 | 235 |
| 7 | BXI – 9 | -5 | 00 | 69 | 03W | 5 | 230 |
| 8 | BRI – 11 | -18 | 31E | 38 | 28E | 8.5 | 231 |
| 9 | BRO – 2 | -1 | 43E | 26 | 40E | 5 | 233 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.