SDO HMI 2013-03-08 06:31:14 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.50 | 0.00 | 2.69 | 22.10 | 157.53 | -16.81 | 28.93 | 0.5563 | 746.7 | 612.9 | |
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back to the solar disc SDO HMI 2013-03-08 06:31:14 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 | 1.56 | 0.00 | 0.92 | 21.16 | 158.28 | -16.06 | 28.70 | 0.5393 | 841.0 | 694.5 | |
| 0.00 | 1.21 | 0.00 | 0.74 | 24.11 | 157.52 | -16.82 | 27.14 | 0.5814 | 653.0 | 557.5 | |
| 0.00 | 1.73 | 0.00 | 1.03 | 21.49 | 156.87 | -17.47 | 30.43 | 0.5535 | 746.0 | 580.0 | |
| 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. | |