SDO HMI 2014-09-20 12:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.73 | 26.60 | 11.97 | 50.71 | -14.88 | 251.00 | -72.32 | 107.56 | 0.9663 | 279.6 | 26.5 | |
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back to the solar disc SDO HMI 2014-09-20 12:00:34 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 |
| 1.68 | 22.07 | 3.00 | 39.21 | -15.54 | 252.31 | -71.01 | 108.48 | 0.9618 | 295.7 | 159.2 | |
| 5.05 | -1.00 | 8.97 | -1.00 | -15.26 | 252.25 | -71.07 | 108.18 | 0.9618 | 399.2 | 999999 | |
| 0.00 | 1.60 | 0.00 | 4.02 | -13.51 | 246.80 | -76.52 | 105.36 | 0.9815 | -271.0 | -295.0 | |
| 0.00 | 2.93 | 0.00 | 7.48 | -13.28 | 246.62 | -76.70 | 105.10 | 0.9819 | -291.0 | -284.2 | |
| 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. | |