Daily Sunspot Evaluation
Observation Sheet Tuesday, 29 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)
- 9
- Number of spots (f)
- 61
- Relative number (R)
- 151
- Observer
- YK
- Reading
- all checks consistent
- File
- 19900529.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 7 | 12 | 09W | 184 | 12W | 4 | 220 |
| 2 | AX – 2 | 21 | 05E | 170 | 02E | 3 | 218 |
| 3 | BRI – 25 | 19 | 25E | 150 | 22E | 14 | 221 |
| 4 | DAO – 3 | 14 | 57E | 118 | 54E | 4 | 225 |
| 5 | HK – 1 | -19 | 67W | 242 | 70W | 3 | 210 |
| 6 | BXI – 8 | -12 | 58W | 233 | 61W | 9 | 216 |
| 7 | BXO – 4 | -5 | 34W | 209 | 37W | 4.5 | 226 |
| 8 | BRO – 8 | -18 | 10W | 185 | 13W | 5 | 227 |
| 9 | BRO – 3 | -12 | 06E | 169 | 03E | 4.5 | 273 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.