| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 22.20 | 143.86 | 18.46 | 120.27 | 19.23 | 104.88 | -51.46 | 66.55 | 0.8074 | -722.6 | -210.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-01 17:58:56 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 | 0.68 | 0.00 | 0.58 | 23.48 | 105.06 | -51.28 | 61.43 | 0.8171 | -500.0 | -506.9 | |
| 0.00 | 0.94 | 0.00 | 0.86 | 26.78 | 102.99 | -53.36 | 58.29 | 0.8441 | -347.0 | -253.3 | |
| 0.00 | 1.20 | 0.00 | 1.03 | 23.73 | 104.61 | -51.74 | 61.28 | 0.8218 | -504.0 | -414.5 | |
| 0.00 | 1.37 | 0.00 | 1.34 | 28.99 | 101.00 | -55.35 | 56.44 | 0.8655 | -368.0 | -313.7 | |
| 0.00 | 0.34 | 0.00 | 0.30 | 23.76 | 104.38 | -51.96 | 61.31 | 0.8239 | -302.0 | -271.8 | |
| 22.20 | 135.75 | 18.46 | 113.01 | 18.92 | 104.99 | -51.35 | 66.88 | 0.8056 | -942.5 | -224.6 | |
| 0.00 | 1.62 | 0.00 | 1.43 | 22.02 | 103.23 | -53.12 | 63.70 | 0.8294 | 566.0 | 428.1 | |
| 0.00 | 1.96 | 0.00 | 1.72 | 20.75 | 103.15 | -53.20 | 65.20 | 0.8270 | 457.0 | 383.3 | |
| 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. | |