Daily Sunspot Evaluation
Observation Sheet Sunday, 28 August 1988
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)
- 65
- Relative number (R)
- 155
- Observer
- HE
- Reading
- all checks consistent
- File
- 19880828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 18 | 19 | 65W | 31 | 68W | 21 | 192 |
| 2 | DAE – 6 | 13 | 47W | 13 | 50W | 5.5 | 183 |
| 3 | BRO – 4 | 15 | 08E | 318 | 05E | 3.5 | 194 |
| 4 | BBI – 4 | 21 | 08E | 318 | 05E | 2.75 | 199 |
| 5 | DSO – 8 | 21 | 46E | 280 | 43E | 8.5 | 197 |
| 6 | DKC – 7 | -20 | 35E | 291 | 32E | 5.75 | 195 |
| 7 | AE – 1 | -27 | 46E | 280 | 43E | 196 | |
| 8 | DAO – 2 | -13 | 60E | 266 | 57E | 4.5 | 200 |
| 9 | FKC – 15 | -18 | 72E | 254 | 69E | 16 | 201 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.