Daily Sunspot Evaluation
Observation Sheet Sunday, 16 January 2000
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)
- 14
- Number of spots (f)
- 108
- Relative number (R)
- 248
- Observer
- TA
- Reading
- all checks consistent
- File
- 20000116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 18 | 78W | 244 | 80W | - | |
| 2 | HS – 2 | 27 | 44W | 210 | 46W | ~2.5 | |
| 3 | AX – 2 | 11 | 07W | 173 | 09W | - | |
| 4 | HS – 1 | 18 | 49E | 117 | 47E | 2 | |
| 5 | AX – 2 | 9 | 51E | 115 | 49E | ~1 | |
| 6 | CRO – 3 | -17 | 29W | 195 | 31W | 3 | |
| 7 | DAC – 50 | -13 | 08W | 174 | 10W | 10 | |
| 8 | DAO – 15 | -22 | 00 | 166 | 02W | 6 | |
| 9 | DAI – 13 | -18 | 35E | 131 | 33E | 8.5 | |
| 10 | BXO – 4 | -13 | 59E | 107 | 57E | 4 | |
| 11 | CO – 5 | 13 | 11E | 155 | 9E | 3.5 | |
| 12 | CSO – 3 | 16 | 20E | 146 | 18E | 8 | |
| 13 | HA – 4 | -13 | 76W | 242 | 78W | ~4 | |
| 14 | CRO – 3 | -18 | 66W | 232 | 68W | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.