SDO HMI 2013-08-17 22:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 35.91 | 217.08 | 25.84 | 156.38 | -7.05 | 139.40 | -44.49 | 106.45 | 0.7275 | 957.1 | 317.3 | |
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back to the solar disc SDO HMI 2013-08-17 22:59:08 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 | 0.81 | 0.00 | 0.57 | -8.97 | 141.75 | -42.14 | 110.01 | 0.7076 | 452.0 | 349.1 | |
| 0.00 | 1.26 | 0.00 | 0.88 | -8.64 | 141.55 | -42.34 | 109.48 | 0.7086 | 741.0 | 581.9 | |
| 35.91 | 213.84 | 25.84 | 154.02 | -7.01 | 139.40 | -44.49 | 106.40 | 0.7274 | 1042.1 | 320.8 | |
| 0.00 | 1.17 | 0.00 | 0.91 | -11.23 | 136.32 | -47.57 | 110.56 | 0.7755 | -518.0 | -445.2 | |
| 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. | |