Daily Sunspot Evaluation
Observation Sheet Saturday, 27 June 1987
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)
- 3
- Number of spots (f)
- 5
- Relative number (R)
- 35
- Observer
- HG
- Reading
- all checks consistent
- File
- 19870627.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 2 | 20 | 45W | 261 | 48W | 6.43 | 37 |
| 2 | BRO – 2 | 29 | 60E | 156 | 57E | 10.45 | 38 |
| 3 | AXX – 1 | -31 | 37W | 253 | 40W | -.41 | 35 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.