Daily Sunspot Evaluation
Observation Sheet Sunday, 27 April 2003
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)
- 77
- Relative number (R)
- 187
- Observer
- TG
- Reading
- all checks consistent
- File
- 20030427.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 5 | 20 | 73W | 282 | 76W | 14 | 92 |
| 2 | HR – 1 | 8 | 08W | 217 | 11W | 0.5 | 108 |
| 3 | AX – 2 | 10 | 03W | 212 | 06W | 1.5 | 109 |
| 4 | DKS – 16 | 15 | 08E | 201 | 05E | 8 | 102 |
| 5 | HS – 1 | 14 | 48E | 161 | 45E | ~2 | 105 |
| 6 | HA – 13 | -13 | 30W | 239 | 33W | ~5 | 94 |
| 7 | DRO – 8 | -19 | 31W | 240 | 34W | 4.5 | 107 |
| 8 | HS – 2 | -18 | 31E | 178 | 28E | 3 | 103 |
| 9 | DAO – 4 | -17 | 44E | 165 | 41E | 5.5 | 104 |
| 10 | DAI – 18 | -14 | 55E | 154 | 52E | 7 | 106 |
| 11 | DAO – 7 | -34 | 54E | 155 | 51E | 5 | 110 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.