Daily Sunspot Evaluation
Observation Sheet Sunday, 24 June 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)
- 8
- Number of spots (f)
- 46
- Relative number (R)
- 126
- Observer
- HE
- Reading
- all checks consistent
- File
- 19900624.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AR – 2 | 15 | 18E | 173 | 14E | 01 | 267 |
| 2 | HS – 1 | 27 | 44E | 147 | 40E | 1.5 | 262 |
| 3 | BRO – 3 | 16 | 44E | 147 | 40E | 3 | 263 |
| 4 | AX – 1 | 33 | 58E | 133 | 54E | - | 268 |
| 5 | HA – 1 | -9 | 70W | 261 | 74W | 2 | 253 |
| 6 | BRI – 24 | -9 | 12E | 179 | 08E | 8 | 264 |
| 7 | AR – 2 | -18 | 52E | 139 | 48E | 3 | 265 |
| 8 | ? – 12 | -23 | 70E | 121 | 66E | 18 | 266 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.