Daily Sunspot Evaluation
Observation Sheet Thursday, 28 March 1985
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)
- 18
- Relative number (R)
- 38
- Observer
- HM
- Reading
- all checks consistent
- File
- 19850328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CKI – 14 | 6 | 04E | 250 | 02E | 8 32 | |
| 2 | BRI – 4 | -11 | 31W | 285 | 33W | 3 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.