Daily Sunspot Evaluation
Observation Sheet Thursday, 28 August 2003
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)
- 56
- Relative number (R)
- 136
- Observer
- MB
- Reading
- all checks consistent
- File
- 20030828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DRI – 13 | 13 | 38W | 60 | 40W | ~5 | 238 |
| 2 | DRO – 5 | 16 | 03E | 19 | 01E | ~4 | 246 |
| 3 | DAI – 14 | 9 | 04E | 18 | 02E | ~6 | 243 |
| 4 | DAO – 10 | 3 | 05E | 17 | 03E | ~6.5 | 244 |
| 5 | DRO – 5 | 19 | 41E | 341 | 39E | ~4 | 247 |
| 6 | HS – 2 | -12 | 03E | 19 | 01E | ~2 | 240 |
| 7 | CRO – 5 | -22 | 33E | 349 | 31E | 4.5 | 245 |
| 8 | ? – 2 | -15 | 75E | 307 | 73E | ? | 248 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.