SDO HMI 2011-02-15 07:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.82 | 0.00 | 5.73 | -20.62 | 65.45 | 47.00 | 248.09 | 0.7383 | -373.8 | -312.3 | |
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back to the solar disc SDO HMI 2011-02-15 07:58:57 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 | 1.29 | 0.00 | 1.10 | -19.98 | 73.30 | 54.85 | 250.32 | 0.8184 | 554.0 | 483.9 | |
| 0.00 | 0.86 | 0.00 | 0.61 | -20.54 | 64.12 | 45.66 | 248.01 | 0.7247 | -543.0 | -436.6 | |
| 0.00 | 1.89 | 0.00 | 1.35 | -20.81 | 63.86 | 45.41 | 247.58 | 0.7224 | -561.0 | -473.2 | |
| 0.00 | 2.49 | 0.00 | 1.76 | -20.85 | 63.42 | 44.97 | 247.42 | 0.7176 | -653.0 | -536.2 | |
| 0.00 | 1.29 | 0.00 | 0.91 | -20.74 | 63.16 | 44.70 | 247.49 | 0.7145 | -666.0 | -521.8 | |
| 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. | |