Daily Sunspot Evaluation
Observation Sheet Sunday, 3 May 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)
- 2
- Number of spots (f)
- 6
- Relative number (R)
- 26
- Observer
- HG
- Reading
- all checks consistent
- File
- 19870503.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRI – 5 | -18 | 56W | 280 | 58W | 6.5 | 25 |
| 2 | HAX – 1 | -23 | 45E | 179 | 43E | 4.5 | 26 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.