SDO HMI 2014-04-20 02:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.77 | 38.40 | 9.54 | 63.87 | -22.96 | 118.64 | -73.40 | 112.45 | 0.9560 | 553.6 | 345.4 | |
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back to the solar disc SDO HMI 2014-04-20 02:00:34 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 |
| 4.88 | 30.24 | 8.00 | 49.52 | -23.00 | 118.94 | -73.10 | 112.50 | 0.9546 | 686.5 | 401.5 | |
| 0.00 | 1.33 | 0.00 | 2.30 | -23.31 | 118.00 | -74.03 | 112.80 | 0.9590 | 199.0 | 171.1 | |
| 0.89 | 3.55 | 1.54 | 6.14 | -22.82 | 117.91 | -74.12 | 112.28 | 0.9594 | 319.1 | 274.0 | |
| 0.00 | 3.28 | 0.00 | 5.91 | -22.59 | 117.14 | -74.89 | 112.03 | 0.9628 | 206.0 | 74.9 | |
| 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. | |