Daily Sunspot Evaluation
Observation Sheet Friday, 27 April 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)
- 4
- Number of spots (f)
- 95
- Relative number (R)
- 135
- Observer
- HM
- Reading
- all checks consistent
- File
- 19840427.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 6 | -11 | 42W | 38 | 45W | 3.5 | 74 |
| 2 | EKC – 46 | -14 | 05E | 351 | 02E | 11 | 76 |
| 3 | FKC – 39 | -13 | 20E | 336 | 17E | 15 | 77 |
| 4 | AXX – 4 | -12 | 45E | 311 | 42E | 4 | 99 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.