Daily Sunspot Evaluation
Observation Sheet Friday, 28 January 1983
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)
- 28
- Relative number (R)
- 88
- Observer
- OG
- Reading
- all checks consistent
- File
- 19830128.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 12 | 4 | 03E | 238 | 00 | 10 | 32 |
| 2 | HAX – 1 | -10 | 27E | 214 | 24E | 33 | |
| 3 | DAO – 10 | -9 | 02W | 243 | 05W | 9.5 | 34 |
| 4 | HAX – 3 | -17 | 45E | 196 | 42E | 2 | 36 |
| 5 | HAX – 1 | -15 | 59E | 182 | 56E | 1.5 | 37 |
| 6 | ARX – 1 | -14 | 68E | 173 | 65E | 1 | 38 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.