SDO HMI 2014-04-12 16:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 37.07 | 248.90 | 21.56 | 144.75 | 12.08 | 263.76 | -26.23 | 55.51 | 0.5264 | -1245.2 | -394.6 | |
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back to the solar disc SDO HMI 2014-04-12 16:00:33 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 |
| 37.07 | 245.99 | 21.56 | 142.98 | 12.06 | 263.80 | -26.19 | 55.51 | 0.5258 | -1320.7 | -395.8 | |
| 0.00 | 0.35 | 0.00 | 0.22 | 15.64 | 261.03 | -28.96 | 52.85 | 0.5872 | -721.0 | -624.8 | |
| 0.00 | 2.56 | 0.00 | 1.55 | 13.80 | 260.73 | -29.26 | 55.77 | 0.5763 | -142.0 | -274.6 | |
| 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. | |