SDO HMI 2011-02-28 06:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.97 | 18.28 | 2.50 | 11.65 | 17.68 | 177.51 | -30.28 | 49.89 | 0.6303 | -605.6 | -507.3 | |
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back to the solar disc SDO HMI 2011-02-28 06:58:58 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 | 1.03 | 0.00 | 0.64 | 16.46 | 179.32 | -28.46 | 49.76 | 0.6010 | 568.0 | 436.0 | |
| 0.00 | 1.29 | 0.00 | 0.82 | 18.58 | 178.16 | -29.62 | 48.16 | 0.6312 | -751.0 | -612.0 | |
| 3.97 | 9.66 | 2.50 | 6.09 | 17.43 | 178.31 | -29.48 | 49.48 | 0.6200 | -934.7 | -709.0 | |
| 0.00 | 0.26 | 0.00 | 0.17 | 18.41 | 177.29 | -30.50 | 49.18 | 0.6386 | -809.0 | -735.3 | |
| 0.00 | 1.21 | 0.00 | 0.78 | 18.32 | 177.16 | -30.62 | 49.41 | 0.6391 | -719.0 | -588.3 | |
| 0.00 | 1.90 | 0.00 | 1.23 | 18.17 | 176.10 | -31.69 | 50.55 | 0.6487 | -355.0 | -367.4 | |
| 0.00 | 2.07 | 0.00 | 1.35 | 17.90 | 175.30 | -32.48 | 51.57 | 0.6548 | -657.0 | -384.5 | |
| 0.00 | 0.86 | 0.00 | 0.57 | 17.67 | 174.75 | -33.03 | 52.30 | 0.6588 | -693.0 | -561.9 | |
| 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. | |