Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 June 1999
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)
- 10
- Number of spots (f)
- 65
- Relative number (R)
- 165
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19990616.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 18 | 76W | 187 | 79W | ~8.5 | |
| 2 | EKS – 25 | 26 | 24W | 135 | 29W | ~11 | 1 |
| 3 | AX – 1 | 34 | 20W | 131 | 23W | - | |
| 4 | HA – 1 | 29 | 14E | 97 | 11E | 1 | |
| 5 | DSO – 5 | 37 | 39E | 72 | 36E | ~8.5 | Dho-5 |
| 6 | ? – 1 | -15 | 74W | 185 | 79W | - | |
| 7 | DSO – 4 | -29 | 69W | 178 | 70W | 8.5 | |
| 8 | HK – 8 | -21 | 14W | 125 | 17W | 4 | |
| 9 | DAO – 13 | -13 | 14E | 97 | 11E | ~8.5 | |
| 10 | AX – 3 | -22 | 19E | 94 | 14E | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.