Daily Sunspot Evaluation
Observation Sheet Monday, 28 September 1992
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)
- 6
- Number of spots (f)
- 19
- Relative number (R)
- 79
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19920928.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | 19 | 51E | 21 | 09E | 2.5 | 345 |
| 2 | DAO – 3 | 6 | 52E | 20 | 50E | 4 | 346 |
| 3 | AX – 3 | -5 | 64W | 136 | 06W | 1.5 | 347 |
| 4 | HK – 4 | -9 | 30W | 102 | 32W | 3.5 | 337 |
| 5 | DAO – 6 | -7 | 05E | 67 | 03E | 3.5 | 342 |
| 6 | HH – 1 | -11 | 27E | 45 | 25E | 3 | 344 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.