Daily Sunspot Evaluation
Observation Sheet Friday, 10 October 1980
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)
- 10
- Number of spots (f)
- 203
- Relative number (R)
- 303
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19801010.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAC – 54 | 11 | 04E | 161 | 01E | 14 | |
| 2 | FLI – 46 | 14 | 20E | 145 | 17E | 15 | |
| 3 | ? – 2 | 17 | 72E | 73 ⚠ | 67E | 11 | |
| 4 | DAI – 7 | -8 | 28W | 173 ⚠ | 31W | 8.5 | |
| 5 | HAX – 1 | -27 | 27W | 192 | 30W | 2 | |
| 6 | DAO – 9 | -18 | 22W | 187 | 25W | 5 | |
| 7 | BXO – 2 | -24 | 02E | 163 | 01W | 3 | |
| 8 | HAX – 1 | -31 | 19E | 146 | 16E | 2 | |
| 9 | ELI – 80 | -9 | 47E | 118 | 44E | 14.5 | |
| 10 | HAX – 1 | -21 | 61E | 102 | 60E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.