SDO HMI 2011-10-31 17:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.08 | 10.03 | 1.30 | 6.37 | 15.48 | 242.61 | 37.61 | 289.55 | 0.6250 | 438.7 | 183.0 | |
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back to the solar disc SDO HMI 2011-10-31 17:58:59 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 |
| 0.00 | 2.42 | 0.00 | 1.66 | 14.59 | 248.38 | 43.38 | 286.47 | 0.6954 | -749.0 | -570.6 | |
| 2.08 | 3.98 | 1.30 | 2.49 | 15.93 | 241.50 | 36.50 | 290.48 | 0.6128 | 760.7 | 601.5 | |
| 0.00 | 1.21 | 0.00 | 0.75 | 16.05 | 240.84 | 35.83 | 290.93 | 0.6046 | 683.0 | 620.9 | |
| 0.00 | 1.04 | 0.00 | 0.63 | 14.68 | 239.44 | 34.43 | 289.22 | 0.5815 | 712.0 | 496.0 | |
| 0.00 | 1.38 | 0.00 | 0.84 | 16.03 | 238.46 | 33.45 | 291.91 | 0.5732 | 690.0 | 457.6 | |
| 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. | |