SDO HMI 2011-10-09 12:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.49 | 95.71 | 13.19 | 68.08 | -11.35 | 180.38 | 42.45 | 247.44 | 0.7188 | 562.9 | 238.2 | |
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back to the solar disc SDO HMI 2011-10-09 12:59:02 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 |
| 17.44 | 84.14 | 12.44 | 60.09 | -11.17 | 180.69 | 42.76 | 247.85 | 0.7215 | 917.4 | 294.5 | |
| 0.00 | 2.28 | 0.00 | 1.63 | -13.03 | 180.35 | 42.42 | 245.29 | 0.7259 | 714.0 | 523.8 | |
| 0.00 | 1.49 | 0.00 | 1.06 | -12.46 | 179.94 | 42.02 | 245.81 | 0.7188 | 615.0 | 509.2 | |
| 1.05 | 2.63 | 0.75 | 1.87 | -13.58 | 179.68 | 41.75 | 244.23 | 0.7211 | -618.5 | -510.2 | |
| 0.00 | 2.89 | 0.00 | 1.94 | -12.52 | 176.05 | 38.13 | 243.59 | 0.6753 | -757.0 | -488.9 | |
| 0.00 | 1.49 | 0.00 | 0.99 | -11.85 | 175.86 | 37.93 | 244.40 | 0.6695 | -766.0 | -626.5 | |
| 0.00 | 0.79 | 0.00 | 0.50 | -11.83 | 172.29 | 34.36 | 242.15 | 0.6271 | -516.0 | -427.1 | |
| 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. | |