| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.74 | 19.85 | 2.21 | 11.72 | -15.45 | 5.35 | 25.72 | 230.30 | 0.5456 | 107.2 | 258.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-21 12:59:01 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 | 0.87 | 0.00 | 0.52 | -15.09 | 7.59 | 27.96 | 233.15 | 0.5678 | 568.0 | 469.1 | |
| 2.26 | 7.14 | 1.34 | 4.24 | -14.95 | 6.49 | 26.86 | 232.28 | 0.5540 | 771.8 | 703.1 | |
| 0.00 | 0.87 | 0.00 | 0.52 | -14.69 | 6.39 | 26.75 | 232.56 | 0.5506 | 719.0 | 497.6 | |
| 0.00 | 0.96 | 0.00 | 0.57 | -16.17 | 5.97 | 26.33 | 229.97 | 0.5586 | 679.0 | 574.2 | |
| 0.00 | 1.22 | 0.00 | 0.72 | -15.91 | 5.93 | 26.30 | 230.30 | 0.5559 | 770.0 | 568.9 | |
| 0.00 | 0.52 | 0.00 | 0.31 | -16.38 | 5.65 | 26.02 | 229.33 | 0.5570 | 632.0 | 514.2 | |
| 1.48 | 2.96 | 0.87 | 1.73 | -15.26 | 4.81 | 25.18 | 230.04 | 0.5375 | 794.3 | 752.3 | |
| 0.00 | 0.96 | 0.00 | 0.57 | -16.65 | 4.45 | 24.81 | 227.63 | 0.5464 | -645.0 | -597.1 | |
| 0.00 | 0.87 | 0.00 | 0.52 | -17.09 | 4.31 | 24.67 | 226.84 | 0.5491 | -398.0 | -369.7 | |
| 0.00 | 0.87 | 0.00 | 0.51 | -16.75 | 3.91 | 24.28 | 226.87 | 0.5417 | -578.0 | -493.9 | |
| 0.00 | 0.70 | 0.00 | 0.41 | -15.86 | 3.29 | 23.65 | 227.41 | 0.5263 | -576.0 | -465.8 | |
| 0.00 | 1.13 | 0.00 | 0.65 | -14.95 | 1.97 | 22.33 | 227.14 | 0.5029 | -743.0 | -615.0 | |
| 0.00 | 0.78 | 0.00 | 0.45 | -15.30 | 1.81 | 22.17 | 226.42 | 0.5045 | -737.0 | -583.0 | |
| 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. | |