SDO HMI 2011-10-28 11:59:00 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.21 | 76.58 | 12.88 | 48.86 | 31.19 | 217.07 | -30.80 | 43.87 | 0.6340 | -818.7 | -477.6 | |
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back to the solar disc SDO HMI 2011-10-28 11:59:00 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 | 1.47 | 0.00 | 0.95 | 32.38 | 217.29 | -30.58 | 42.22 | 0.6417 | -729.0 | -500.1 | |
| 19.08 | 68.95 | 12.16 | 43.85 | 31.10 | 217.27 | -30.60 | 43.85 | 0.6314 | -948.1 | -503.3 | |
| 1.13 | 4.86 | 0.72 | 3.12 | 31.62 | 216.91 | -30.95 | 43.47 | 0.6389 | -705.2 | -485.8 | |
| 0.00 | 1.30 | 0.00 | 0.94 | 32.81 | 207.83 | -40.04 | 48.01 | 0.7298 | 583.0 | 435.4 | |
| 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. | |