SDO HMI 2011-12-17 02:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.17 | 57.35 | 5.77 | 40.48 | 8.40 | 358.23 | 44.50 | 282.99 | 0.7140 | -521.2 | -426.6 | |
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back to the solar disc SDO HMI 2011-12-17 02:58:55 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 |
| 2.55 | 54.54 | 1.81 | 38.59 | 8.40 | 358.61 | 44.88 | 282.90 | 0.7185 | -772.5 | -458.3 | |
| 1.02 | -1.00 | 0.72 | -1.00 | 8.25 | 358.42 | 44.69 | 282.73 | 0.7159 | -987.0 | 999999 | |
| 4.60 | -1.00 | 3.24 | -1.00 | 8.46 | 358.20 | 44.47 | 283.07 | 0.7137 | -982.7 | 999999 | |
| 0.00 | 1.02 | 0.00 | 0.70 | 6.26 | 357.09 | 43.36 | 280.24 | 0.6959 | -607.0 | -560.3 | |
| 0.00 | 1.19 | 0.00 | 0.80 | 9.29 | 355.25 | 41.52 | 285.04 | 0.6797 | 681.0 | 506.0 | |
| 0.00 | 0.60 | 0.00 | 0.39 | 9.24 | 354.17 | 40.44 | 285.31 | 0.6661 | 648.0 | 555.9 | |
| 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. | |