SDO HMI 2011-09-01 16:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.76 | 120.84 | 14.03 | 65.79 | 18.52 | 299.61 | 22.27 | 299.76 | 0.4160 | -1096.5 | -421.4 | |
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back to the solar disc SDO HMI 2011-09-01 16:59:08 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 | 3.40 | 0.00 | 1.87 | 13.31 | 302.71 | 25.37 | 285.86 | 0.4353 | -722.0 | -494.2 | |
| 1.70 | 114.13 | 0.93 | 62.16 | 18.99 | 299.72 | 22.38 | 300.67 | 0.4203 | -552.6 | -404.4 | |
| 24.06 | -2.00 | 13.10 | -2.00 | 18.66 | 299.60 | 22.26 | 300.06 | 0.4164 | -1173.6 | 999999 | |
| 0.00 | 3.31 | 0.00 | 1.76 | 18.33 | 296.49 | 19.15 | 302.68 | 0.3715 | -968.0 | -808.6 | |
| 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. | |