SDO HMI 2011-04-28 21:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.99 | 61.97 | 32.98 | 159.19 | 17.97 | 64.61 | -76.63 | 70.67 | 0.9816 | -115.8 | -39.8 | |
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back to the solar disc SDO HMI 2011-04-28 21:59:06 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 |
| 7.03 | 61.97 | 17.62 | 159.19 | 17.93 | 64.76 | -76.48 | 70.69 | 0.9811 | -446.6 | -39.8 | |
| 5.16 | -1.00 | 13.39 | -1.00 | 18.12 | 64.35 | -76.89 | 70.56 | 0.9825 | 375.4 | 999999 | |
| 0.80 | -1.00 | 1.97 | -1.00 | 17.37 | 64.97 | -76.28 | 71.23 | 0.9802 | -496.1 | 999999 | |
| 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. | |