SDO HMI 2011-09-03 23:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.74 | 40.30 | 7.76 | 32.20 | 18.69 | 298.87 | 51.82 | 288.16 | 0.7858 | -741.7 | -377.8 | |
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back to the solar disc SDO HMI 2011-09-03 23:59:07 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 | 1.07 | 0.00 | 0.92 | 20.59 | 302.16 | 55.10 | 290.13 | 0.8199 | -569.0 | -462.2 | |
| 4.29 | 38.07 | 3.43 | 30.40 | 18.53 | 299.04 | 51.99 | 287.93 | 0.7874 | -729.7 | -369.4 | |
| 5.45 | -2.00 | 4.33 | -2.00 | 18.72 | 298.71 | 51.65 | 288.21 | 0.7842 | -817.0 | 999999 | |
| 0.00 | 1.16 | 0.00 | 0.88 | 18.72 | 296.00 | 48.94 | 288.58 | 0.7557 | -629.0 | -505.1 | |
| 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. | |