SDO HMI 2011-03-04 15:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.19 | 25.21 | 7.74 | 39.69 | 24.58 | 216.00 | 65.84 | 298.99 | 0.9496 | 4.1 | -102.9 | |
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back to the solar disc SDO HMI 2011-03-04 15:58:59 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 |
| 2.42 | 19.34 | 3.91 | 31.50 | 24.61 | 216.68 | 66.52 | 298.82 | 0.9531 | -423.9 | -160.5 | |
| 1.73 | 3.28 | 2.32 | 4.40 | 23.56 | 212.70 | 62.54 | 298.94 | 0.9310 | 409.0 | 339.4 | |
| 0.00 | 0.95 | 0.00 | 1.41 | 25.60 | 214.43 | 64.27 | 300.46 | 0.9441 | 257.0 | 133.6 | |
| 1.04 | 1.64 | 1.51 | 2.38 | 25.41 | 214.02 | 63.86 | 300.40 | 0.9417 | 322.8 | 279.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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. |
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| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
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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. |
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| 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. | |