SDO HMI 2013-09-18 13:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 31.13 | 169.28 | 46.16 | 255.02 | -17.58 | 59.11 | -67.08 | 111.50 | 0.9449 | 404.9 | 66.1 | |
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back to the solar disc SDO HMI 2013-09-18 13:59:04 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 |
| 25.45 | 163.34 | 37.55 | 243.48 | -17.61 | 59.47 | -66.72 | 111.62 | 0.9432 | 589.5 | 79.9 | |
| 5.68 | -1.00 | 8.61 | -1.00 | -17.68 | 58.84 | -67.35 | 111.53 | 0.9467 | -165.9 | 999999 | |
| 0.00 | 0.62 | 0.00 | 1.07 | -18.52 | 56.47 | -69.72 | 111.81 | 0.9593 | -367.0 | -327.3 | |
| 0.00 | 2.04 | 0.00 | 3.86 | -16.17 | 54.23 | -71.96 | 108.93 | 0.9666 | -376.0 | -317.4 | |
| 0.00 | 3.28 | 0.00 | 6.61 | -16.50 | 53.40 | -72.80 | 109.09 | 0.9703 | -61.0 | -57.9 | |
| 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. | |