SDO HMI 2011-10-28 13:59:00 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 | 2.84 | 17.28 | 214.76 | -32.01 | 65.44 | 0.5572 | -739.5 | -610.9 | |
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back to the solar disc SDO HMI 2011-10-28 13:59:00 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 | 1.47 | 0.00 | 0.84 | 16.99 | 219.11 | -27.66 | 63.53 | 0.4980 | -731.0 | -615.4 | |
| 0.00 | 1.21 | 0.00 | 0.72 | 17.89 | 215.58 | -31.19 | 64.16 | 0.5498 | -738.0 | -646.6 | |
| 0.00 | 0.95 | 0.00 | 0.57 | 17.58 | 214.01 | -32.76 | 65.54 | 0.5688 | -748.0 | -629.9 | |
| 0.00 | 1.13 | 0.00 | 0.71 | 16.75 | 209.38 | -37.39 | 68.91 | 0.6255 | -741.0 | -554.5 | |
| 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. | |