Daily Sunspot Evaluation
Observation Sheet Sunday, 20 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)
- 7
- Number of spots (f)
- 13
- Relative number (R)
- 83
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19990620.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 28 | 72W | 130 | 74W | 1 | Hr-1 |
| 2 | DAO – 3 | 27 | 42W | 100 | 44W | 7 | |
| 3 | HS – 2 | 36 | 09W | 67 | 11W | ~3 | Hh-2 |
| 4 | HA – 2 | 21 | 65E | 353 | 63E | 2 | |
| 5 | HA – 2 | -22 | 68W | 126 | 66W | ~3 | Hk-2 |
| 6 | HR – 2 | 21 | 75E | 313 ⚠ | 75E | ~02 | |
| 7 | ? – 1 | 19 | 85E | 333 | 85E | ? |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.