Daily Sunspot Evaluation
Observation Sheet Monday, 13 June 1983
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)
- 5
- Number of spots (f)
- 41
- Relative number (R)
- 91
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830613.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 18 | 85E | 160 | 82E | 156 | |
| 2 | EKE – 27 | -10 | 28W | 273 | 31W | 12 | 151 |
| 3 | DAI – 9 | -11 | 08W | 253 | 11W | 2.5 | 154 |
| 4 | HAX – 1 | -28 | 62E | 183 | 59E | 1.5 | 155 |
| 5 | BXO – 3 | -8 | 72E | 173 | 69E | 5 | 157 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.