Daily Sunspot Evaluation
Observation Sheet Monday, 23 June 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)
- 12
- Number of spots (f)
- 102
- Relative number (R)
- 222
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800623.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 2 | 18 | 58W | 223 | 61W | 2 | |
| 2 | HKF – 20 | 22 | 47W | 212 | 50W | 10 | |
| 3 | HAX – 1 | 13 | 60E | 105 | 57E | 1 | |
| 4 | BXI – 7 | -10 | 24W | 189 | 27W | 6.5 | |
| 5 | DRI – 11 | -12 | 17W | 182 | 20W | 3 | |
| 6 | CSO – 4 | -20 | 05W | 170 | 08W | 4 | |
| 7 | EKS – 23 | -29 | 00 | 165 | 03W | 15 | |
| 8 | DRI – 15 | -23 | 08E | 157 | 05E | 8.5 | |
| 9 | HAX – 1 | -11 | 11E | 154 | 08E | 1 | |
| 10 | HKF – 9 | -14 | 40E | 125 | 37E | 7 | |
| 11 | CRO – 3 | -21 | 48E | 117 | 45E | 9 | |
| 12 | DAO – 6 | -9 | 49E | 116 | 46E | 6.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.