SDO HMI 2014-04-09 04:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.76 | 0.00 | 2.63 | -22.05 | 345.60 | 9.42 | 207.13 | 0.4400 | -600.0 | -627.3 | |
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back to the solar disc SDO HMI 2014-04-09 04:00:33 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 | 1.59 | 0.00 | 0.91 | -7.45 | 6.65 | 30.47 | 265.59 | 0.5064 | -812.0 | -614.6 | |
| 0.00 | 0.26 | 0.00 | 0.14 | -26.44 | 336.30 | 0.12 | 180.31 | 0.3498 | -6.0 | -5.7 | |
| 0.00 | 1.94 | 0.00 | 1.06 | -31.33 | 334.96 | -1.22 | 177.57 | 0.4291 | -901.0 | -804.2 | |
| 0.00 | 0.97 | 0.00 | 0.52 | -27.49 | 332.98 | -3.20 | 172.29 | 0.3705 | -681.0 | -454.2 | |
| 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. | |