Daily Sunspot Evaluation
Observation Sheet Monday, 18 June 1984
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)
- 40
- Relative number (R)
- 90
- Observer
- TS
- Reading
- all checks consistent
- File
- 19840618.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 3 | 9 | 21W | 50 | 24W | 2 | 102 |
| 2 | BRO – 2 | 16 | 43E | 346 | 40E | 7 | 104 |
| 3 | BRI – 8 | -11 | 63W | 92 | 66W | 6 | 106 |
| 4 | CKI – 26 | -7 | 05E | 24 | 02E | 10 | 110 |
| 5 | HAY – 1 | -5 | 36E | 353 | 33E | 2 | 111 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.