Daily Sunspot Evaluation
Observation Sheet Wednesday, 27 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)
- 4
- Number of spots (f)
- 9
- Relative number (R)
- 49
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19990127.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 19 | 69W | 228 | 72W | 2 | |
| 2 | AR – 3 | 26 | 26W | 185 | 29W | 2 | Hr-3 |
| 3 | AX – 1 | 22 | 10W | 169 | 13W | - | |
| 4 | BX – 4 | -15 | 35W | 194 | 38W | 3 | Bxo-4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.