SDO HMI 2014-08-17 08:00:38 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 13.61 | 67.68 | 30.87 | 157.44 | 15.29 | 133.31 | 78.71 | 284.22 | 0.9768 | -305.4 | -58.3 | |
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back to the solar disc SDO HMI 2014-08-17 08:00:38 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 |
| 6.04 | 67.68 | 13.19 | 157.44 | 14.85 | 132.84 | 78.23 | 283.74 | 0.9752 | -441.7 | -58.3 | |
| 6.04 | -1.00 | 14.28 | -1.00 | 15.69 | 133.84 | 79.24 | 284.66 | 0.9786 | -183.7 | 999999 | |
| 1.53 | -1.00 | 3.40 | -1.00 | 15.29 | 132.93 | 78.33 | 284.19 | 0.9754 | -287.9 | 999999 | |
| 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. | |