Daily Sunspot Evaluation
Observation Sheet Monday, 10 May 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)
- 87
- Relative number (R)
- 167
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19990510.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 16 | 68W | 309 | 71W | 2 | 45-1 |
| 2 | BXO – 5 | 10 | 65W | 306 | 68W | 5 | 45-5 |
| 3 | BXO – 3 | 12 | 12E | 229 | 09E | 5 | |
| 4 | HK – 6 | 20 | 25E | 216 | 22E | 5 | |
| 5 | EAC – 25 | 21 | 48E | 195 | 45E | 14 | |
| 6 | CAI – 28 | -25 | 09E | 232 | 06E | 10 | |
| 7 | CAO – 6 | -19 | 16E | 225 | 13E | 4 | |
| 8 | EAO – 13 | -28 | 42E | 199 | 39E | 11 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.