Daily Sunspot Evaluation
Observation Sheet Wednesday, 1 March 1989
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)
- 11
- Number of spots (f)
- 52
- Relative number (R)
- 162
- Observer
- MB
- Reading
- all checks consistent
- File
- 19890301.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKO – 6 | 14 | 69W | 116 | +2W | 13.0 | 435 |
| 2 | HH – 6 | 11 | 07W | 54 | 10W | 5.0 | 436 |
| 3 | AX – 1 | 38 | 03E | 44 | 00 | - | 437 |
| 4 | DAI – 7 | 18 | 04E | 43 | 01E | 4.0 | 438 |
| 5 | BXI – 8 | 22 | 52E | 355 | 49E | 6.5 | 439 |
| 6 | AX – 1 | 20 | 69E | 338 | 66E | - | 440 |
| 7 | AR – 1 | -9 | 62W | 109 | 65W | 0.5 | 441 |
| 8 | AX – 1 | -19 | 46W | 93 | 49W | - | 442 |
| 9 | AX – 1 | -21 | 34W | 81 | 37W | - | 443 |
| 10 | BRO – 2 | -25 | 19W | 66 | 22W | 5.0 | 444 |
| 11 | DAC – 18 | -21 | 00 | 47 | 03W | 12.0 | 445 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.