SDO HMI 2014-04-16 04:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.01 | 20.99 | 12.89 | 72.75 | 19.04 | 164.46 | -79.30 | 69.79 | 0.9900 | -140.3 | 172.6 | |
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back to the solar disc SDO HMI 2014-04-16 04:00:34 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 |
| 0.00 | 0.71 | 0.00 | 1.88 | 18.83 | 167.12 | -76.64 | 69.60 | 0.9833 | -313.0 | -311.5 | |
| 0.00 | 0.89 | 0.00 | 2.32 | 18.53 | 167.28 | -76.48 | 69.88 | 0.9826 | -76.0 | -137.3 | |
| 0.00 | 11.51 | 0.00 | 34.85 | 19.19 | 165.83 | -77.93 | 69.45 | 0.9871 | 486.0 | 294.9 | |
| 3.01 | 7.88 | 12.89 | 33.70 | 18.94 | 162.71 | -81.05 | 70.15 | 0.9939 | -180.5 | 45.9 | |
| 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. | |