Daily Sunspot Evaluation
Observation Sheet Sunday, 10 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)
- 11
- Number of spots (f)
- 70
- Relative number (R)
- 180
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19900610.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 1 | 15W | 31 | 18W | 1 | 233 |
| 2 | DKC – 34 | 8 | 08W | 24 | 11W | 9.5 | 233E |
| 3 | CAI – 16 | 23 | 02W | 18 | 05W | 6 | 236 |
| 4 | AX – 3 | 23 | 34E | 342 | 31E | 1 | 242 |
| 5 | AX – 2 | 25 | 49E | 327 | 46E | 0.5 | 237 |
| 6 | AX – 2 | -13 | 63W | 79 | 66W | 3 | 235 |
| 7 | AX – 1 | -18 | 00 | 16 | 03W | - | 243 |
| 8 | BXO – 5 | -10 | 03E | 13 | 00 | 2 | 238 |
| 9 | AX – 1 | -12 | 42E | 334 | 39E | - | 239 |
| 10 | AX – 1 | -16 | 45E | 331 | 42E | - | 240 |
| 11 | HH – 3 | -15 | 61E | 315 | 58E | 5 | 241 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.