SDO HMI 2011-04-29 15:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.17 | 134.49 | 27.47 | 214.28 | 18.16 | 62.12 | -69.23 | 69.20 | 0.9486 | -450.9 | -100.0 | |
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back to the solar disc SDO HMI 2011-04-29 15:59:06 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 |
| 14.25 | 117.03 | 20.07 | 165.53 | 18.03 | 64.64 | -66.70 | 68.89 | 0.9377 | -605.8 | -103.0 | |
| 2.58 | -1.00 | 3.69 | -1.00 | 18.22 | 64.34 | -67.01 | 68.76 | 0.9396 | 225.2 | 999999 | |
| 1.34 | 17.46 | 3.71 | 48.75 | 18.49 | 53.71 | -77.64 | 70.30 | 0.9848 | -284.9 | -90.5 | |
| 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. | |