SDO HMI 2014-09-04 00:00:36 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.15 | 36.02 | 36.35 | 255.25 | -12.77 | 97.40 | -83.77 | 103.49 | 0.9969 | 183.9 | 74.9 | |
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back to the solar disc SDO HMI 2014-09-04 00:00:36 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 | 2.77 | 0.00 | 41.71 | -15.00 | 95.47 | -85.70 | 105.44 | 0.9994 | 246.0 | 284.4 | |
| 7.15 | 30.03 | 36.35 | 167.60 | -12.21 | 98.58 | -82.59 | 103.10 | 0.9956 | 206.6 | 117.7 | |
| 0.00 | 2.06 | 0.00 | 24.92 | -13.14 | 95.48 | -85.69 | 103.59 | 0.9992 | -207.0 | -201.3 | |
| 0.00 | 1.16 | 0.00 | 21.02 | -12.40 | 94.10 | -87.07 | 102.67 | 0.9998 | -312.0 | -280.2 | |
| 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. | |