| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.93 | 14.92 | 6.03 | 9.99 | 14.13 | 34.88 | -38.63 | 63.98 | 0.6760 | -443.8 | -99.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-04 00:59:07 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 0.54 | 0.00 | 0.35 | 16.50 | 37.11 | -36.40 | 59.43 | 0.6631 | -561.0 | -475.7 | |
| 0.00 | 0.80 | 0.00 | 0.52 | 14.40 | 36.87 | -36.63 | 62.47 | 0.6540 | 493.0 | 413.3 | |
| 0.00 | 0.80 | 0.00 | 0.53 | 15.02 | 35.85 | -37.66 | 62.22 | 0.6692 | -682.0 | -601.8 | |
| 0.71 | 3.04 | 0.48 | 2.02 | 14.77 | 35.74 | -37.77 | 62.63 | 0.6691 | 541.0 | 241.0 | |
| 0.00 | 0.27 | 0.00 | 0.18 | 12.26 | 35.30 | -38.20 | 66.38 | 0.6619 | -677.0 | -592.3 | |
| 8.22 | 9.47 | 5.55 | 6.39 | 13.76 | 34.23 | -39.28 | 64.86 | 0.6816 | -769.1 | -461.6 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |