Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 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)
- 66
- Relative number (R)
- 156
- Observer
- YK
- Reading
- all checks consistent
- File
- 19900626.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 23 | 54W | 218 | 57W | _ | 271 |
| 2 | AX – 3 | 14 | 50W | 214 | 53W | 2.5 | 272 |
| 3 | AX – 2 | 15 | 01E | 163 | 02W | 1.5 | 273 |
| 4 | HS – 1 | 28 | 18E | 146 | 15E | 2 | 262 |
| 5 | BAI – 20 | -8 | 17W | 181 | 20W | 6.5 | 264 |
| 6 | BRO – 5 | -8 | 00 | 164 | 03W | 3.5 | 270 |
| 7 | AR – 2 | -17 | 24E | 140 | 21E | 0.5 | 265 |
| 8 | FKI – 31 | -22 | 43E | 121 | 40E | 19 | 266 |
| 9 | ? – 1 | -11 | 85E | 79 | 82E | _ | 274 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.