SDO HMI 2011-02-25 07:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.29 | 27.56 | 9.98 | 42.57 | 16.06 | 178.58 | -68.17 | 70.33 | 0.9486 | -42.7 | 262.4 | |
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back to the solar disc SDO HMI 2011-02-25 07:58:58 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 | 0.69 | 0.00 | 1.12 | 18.59 | 178.12 | -68.63 | 67.85 | 0.9543 | -281.0 | -258.0 | |
| 0.00 | 1.46 | 0.00 | 2.22 | 16.95 | 179.28 | -67.48 | 69.25 | 0.9464 | -195.0 | -33.8 | |
| 0.00 | 1.21 | 0.00 | 1.81 | 15.91 | 179.21 | -67.54 | 70.33 | 0.9453 | 503.0 | 458.1 | |
| 1.98 | 14.04 | 2.94 | 20.77 | 15.21 | 179.28 | -67.47 | 71.04 | 0.9440 | 544.7 | 469.0 | |
| 4.31 | 6.54 | 7.04 | 10.68 | 17.14 | 177.69 | -69.07 | 69.43 | 0.9546 | -303.8 | -288.9 | |
| 0.00 | 2.76 | 0.00 | 4.41 | 16.21 | 177.98 | -68.78 | 70.31 | 0.9521 | 209.0 | 282.2 | |
| 0.00 | 0.86 | 0.00 | 1.56 | 16.61 | 175.74 | -71.02 | 70.41 | 0.9631 | -338.0 | -300.3 | |
| 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. | |