Daily Sunspot Evaluation
Observation Sheet Thursday, 2 June 1977
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)
- 21
- Relative number (R)
- 51
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770602.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 20 | 27E | 122 | 24E | 3460 | |
| 2 | D – 10 | -22 | 52W | 201 | 55W | ||
| 3 | C – 9 | 22 | 59W | 208 | 62W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.