Daily Sunspot Evaluation
Observation Sheet Friday, 1 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)
- 6
- Number of spots (f)
- 37
- Relative number (R)
- 97
- Observer
- HE
- Reading
- all checks consistent
- File
- 19990101.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 28 | 78W | 220 | 81W | - | |
| 2 | BXO – 2 | 15 | 67W | 209 | 70W | 6 | |
| 3 | EKC – 28 | 25 | 31W | 173 | 34W | 12 | |
| 4 | AX – 1 | 21 | 05E | 137 | 02E | - | |
| 5 | HR – 1 | 14 | 52E | 90 | 49E | ~1 | |
| 6 | CSO – 4 | -24 | 16W | 158 | 19W | 8.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.