Daily Sunspot Evaluation
Observation Sheet Thursday, 2 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)
- 8
- Number of spots (f)
- 49
- Relative number (R)
- 129
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19801002.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 7 | 37W | 308 | 41W | 5 | |
| 2 | HSX – 1 | 13 | 35W | 304 | -37W | 0.5 | |
| 3 | HSX – 3 | 30 | 04E | 265 | 02E | 2 | |
| 4 | CAO – 11 | 23 | 08E | 261 | 06E | 6 | |
| 5 | DRI – 18 | 15 | 14E | 250 ⚠ | 17E | 9.5 | |
| 6 | BXI – 8 | 16 | 54E | 215 | 52E | 11 | |
| 7 | CAO – 4 | -18 | 31W | 300 | 33W | 4.5 | |
| 8 | ? – 1 | -25 | 74E | 195 | 72E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.