SDO HMI 2014-04-21 04:00:35 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.89 | 64.35 | 15.74 | 63.29 | -23.19 | 118.28 | -59.45 | 113.89 | 0.8677 | 695.0 | 435.3 | |
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back to the solar disc SDO HMI 2014-04-21 04:00:35 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 |
| 11.01 | 60.62 | 10.82 | 59.52 | -23.21 | 118.52 | -59.21 | 113.94 | 0.8658 | 865.5 | 443.3 | |
| 3.73 | -1.00 | 3.74 | -1.00 | -23.28 | 117.81 | -59.92 | 113.92 | 0.8715 | 372.0 | 999999 | |
| 0.00 | 1.33 | 0.00 | 1.33 | -22.18 | 117.76 | -59.96 | 112.66 | 0.8707 | 509.0 | 391.9 | |
| 1.15 | 2.40 | 1.18 | 2.44 | -22.87 | 117.12 | -60.61 | 113.37 | 0.8764 | 312.2 | 196.0 | |
| 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. | |