Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 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)
- 50
- Relative number (R)
- 150
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19801007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 9 | 15 | 45W | 249 | 48W | 10.5 | |
| 2 | BXO – 2 | 15 | 08W | 212 | 11W | 2 | |
| 3 | BEO – 4 | 13 | 47E | 157 | 44E | 6 | |
| 4 | EKC – 20 | 15 | 39E | 145 ⚠ | 56E | 7.6 | |
| 5 | HJX – 2 | -26 | 12E | 172 ⚠ | 09E | 1.5 | |
| 6 | CAO – 2 | -8 | 11E | 172 ⚠ | 09E | 2.5 | |
| 7 | BXO – 4 | -24 | 47E | 162 ⚠ | 37E | 5 | |
| 8 | HAX – 2 | -30 | 59E | 145 | 56E | 2.75 | |
| 9 | ? – 3 | -12 | 75G | 129 | 71E | 15 | |
| 10 | ? – 2 | -8 | 83E | 121 | 89E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.