Daily Sunspot Evaluation
Observation Sheet Saturday, 27 January 1990
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)
- 13
- Number of spots (f)
- 96
- Relative number (R)
- 226
- Observer
- HE
- Reading
- all checks consistent
- File
- 19900127.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 4 | 14 | 51W | 32 | 51W | 6 | 46 |
| 2 | AX – 1 | 27 | 52W | 33 | 52W | - | 51 |
| 3 | BRI – 12 | 14 | 14W | 355 | 14W | 5.5 | 47 |
| 4 | EKI – 15 | 23 | 17E | 324 | 17E | 11 | 48 |
| 5 | HH – 1 | 11 | 35E | 306 | 35E | 3 | 43 |
| 6 | AX – 2 | 29 | 58E | 283 | 58E | 1 | 52 |
| 7 | ? – 1 | 24 | 81E | 260 | 81E | 5 | 53 |
| 8 | AX – 2 | -9 | 74W | 55 | 74W | 0.5 | 27 |
| 9 | CAI – 6 | -10 | 66W | 47 | 66W | 10.5 | 30 |
| 10 | AX – 3 | -13 | 50W | 31 | 50W | 2 | 37 |
| 11 | CAI – 10 | -27 | 44W | 25 | 44W | 6.5 | 31 |
| 12 | FKI – 35 | -10 | 03E | 338 | 03E | 10.5 | 41 |
| 13 | BRI – 4 | -16 | 27E | 314 | 27E | 5 | 50 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.