Daily Sunspot Evaluation
Observation Sheet Thursday, 7 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)
- 8
- Number of spots (f)
- 36
- Relative number (R)
- 116
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19990107.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 22 | 72W | 133 | 73W | - | |
| 2 | BXI – 4 | 26 | 55W | 116 | 56W | 4 | |
| 3 | EAO – 8 | 14 | 30W | 91 | 31W | 12 | |
| 4 | AX – 2 | 12 | 27E | 34 | 26E | 2.5 | |
| 5 | AX – 1 | -22 | 54W | 115 | 55W | 1 | |
| 6 | BXO – 6 | -28 | 18E | 43 | 17E | 4 | |
| 7 | AX – 2 | -29 | 41E | 20 | 40E | 1.5 | |
| 8 | BXI – 12 | -27 | 55E | 6 | 54E | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.