Daily Sunspot Evaluation
Observation Sheet Sunday, 4 November 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)
- 84
- Relative number (R)
- 214
- Observer
- YK
- Reading
- all checks consistent
- File
- 19901104.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 5 | 8 | 45W | 278 | 47W | 1.5 | 509 |
| 2 | AX – 1 | 12 | 17W | 250 | 19W | - | 511 |
| 3 | BRI – 6 | 8 | 01E | 232 | 01W | 5.5 | 514 |
| 4 | AX – 1 | 16 | 11E | 222 | 09E | - | 515 |
| 5 | AX – 1 | 11 | 74E | 159 | 72E | - | 516 |
| 6 | ? – 1 | 15 | 87E | 146 | 85E | - | 517 |
| 7 | DKI – 25 | -4 | 09W | 242 | 11W | 8 | 507 |
| 8 | BXO – 4 | -21 | 08E | 225 | 06E | 3 | 518 |
| 9 | DSI – 18 | -19 | 18E | 215 | 16E | 7 | 508 |
| 10 | CAI – 15 | -26 | 22E | 211 | 20E | 7.5 | 512 |
| 11 | AX – 3 | -21 | 26E | 207 | 24E | 1 | 513 |
| 12 | AX – 2 | -24 | 32E | 201 | 30E | 1 | 519 |
| 13 | AX – 2 | -11 | 73E | 160 | 71E | 2 | 520 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.