Daily Sunspot Evaluation
Observation Sheet Thursday, 30 June 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)
- 5
- Number of spots (f)
- 34
- Relative number (R)
- 84
- Observer
- HM
- Reading
- all checks consistent
- File
- 19830630.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 9 | 11 | 58W | 78 | 60W | 6 | 172 |
| 2 | AXX – 2 | -12 | 07E | 13 | 05E | 184 | |
| 3 | CSO – 3 | -8 | 18E | 2 | 16E | 5.5 | 178 |
| 4 | HKX – 10 | -9 | 27E | 353 | 25E | 3.5 | 179 |
| 5 | CAI – 10 | -19 | 41E | 339 | 39E | 10.5 | 183 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.