Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 May 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)
- 10
- Number of spots (f)
- 166
- Relative number (R)
- 266
- Observer
- YK
- Reading
- all checks consistent
- File
- 19900522.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 32 | 60W | 327 | 63W | 0.5 | 201 |
| 2 | BXO – 3 | 22 | 58W | 325 | 61W | 5 | 211 |
| 3 | DKI – 32 | 35 | 49W | 316 | 52W | 10 | 202 |
| 4 | CAI – 7 | 19 | 01W | 268 | 04W | 7 | 217 |
| 5 | BRI – 25 | 98 | 00E | 267 | 03W | 10.5 | 207 |
| 6 | HA – 1 | 26 | 42E | 225 | 39E | 2 | 213 |
| 7 | AX – 4 | -14 | 63W | 330 | 66W | 3.5 | 214 |
| 8 | PKC – 45 | -16 | 42W | 309 | 45W | 21.5 | 205 |
| 9 | DKI – 18 | -19 | 23E | 244 | 20E | 8.5 | 210 |
| 10 | CAI – 30 | -12 | 32E | 235 | 29E | 9 | 216 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.