Daily Sunspot Evaluation
Observation Sheet Saturday, 15 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)
- 9
- Number of spots (f)
- 58
- Relative number (R)
- 148
- Observer
- HE
- Reading
- all checks consistent
- File
- 19990515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HH – 10 | 21 | 40°W | 215 | 43°W | 6° | HK-10 |
| 2 | ESC – 21 | 19 | 19°W | 194 | 22°W | 11° | |
| 3 | DRO – 3 | 21 | 07°W | 182 | 10°W | 2° | |
| 4 | AX – 1 | 5 | 25°E | 150 | 22°E | - | |
| 5 | HH – 1 | 37 | 68°E | 107 | 65°E | 3° | |
| 6 | DSO – 5 | -18 | 51°W | 226 | 54°W | 7° | Do-5 |
| 7 | AX – 2 | -33 | 38°W | 213 | 41°W | 2° | |
| 8 | HS – 2 | -19 | 27°E | 148 | 24°E | ~4° | |
| 9 | DAO – 13 | -20 | 57°E | 118 | 54°E | 7.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.