Daily Sunspot Evaluation
Observation Sheet Sunday, 10 January 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)
- 5
- Number of spots (f)
- 20
- Relative number (R)
- 70
- Observer
- YK
- Reading
- all checks consistent
- File
- 19990110.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 3 | 614 | 73W | 95 | 74W | 14.5 | |
| 2 | ? – 1 | 810 | 76E | 306 | 75E | ||
| 3 | AX – 6 | -29 | 26W | 48 | 27W | 1 | |
| 4 | HR – 9 | -29 | 00 | 21 | 01W | 3 | |
| 5 | AX – 1 | -32 | 61E | 321 | 60E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.