Daily Sunspot Evaluation
Observation Sheet Monday, 13 June 1988
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)
- 3
- Number of spots (f)
- 26
- Relative number (R)
- 56
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880613.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 11 | 13 | 08E | 243 | 05E | 6 | 120 |
| 2 | AX – 1 | -22 | 72W | 323 | 75W | 113 | |
| 3 | EAI – 14 | -16 | 25W | 276 | 28W | 14 | 114 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.