Daily Sunspot Evaluation
Observation Sheet Saturday, 28 August 1993
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)
- 16
- Relative number (R)
- 56
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19930828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DRO – 9 | 10 | 31W | 16 | 34W | 7 | 216 |
| 2 | HS – 1 | 21 | 25E | 320 | 22E | 2 | 220 |
| 3 | CAO – 4 | 7 | 38E | 307 | 35E | 7 | 222 |
| 4 | HA – 2 | -9 | 63W | 48 | 66W | 3 | 215 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.