SDO HMI 2011-08-25 21:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.53 | 7.90 | 0.86 | 4.42 | -18.17 | 355.65 | -11.40 | 156.14 | 0.4658 | 493.0 | 396.2 | |
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back to the solar disc SDO HMI 2011-08-25 21:59:08 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 | 1.17 | 0.00 | 0.65 | -18.50 | 357.08 | -9.97 | 159.09 | 0.4617 | 818.0 | 562.4 | |
| 0.00 | 1.70 | 0.00 | 0.95 | -18.19 | 357.07 | -9.98 | 158.81 | 0.4574 | 887.0 | 728.1 | |
| 0.00 | 1.26 | 0.00 | 0.70 | -17.22 | 355.90 | -11.15 | 155.69 | 0.4505 | 697.0 | 552.4 | |
| 0.00 | 1.44 | 0.00 | 0.81 | -18.64 | 355.45 | -11.60 | 156.15 | 0.4733 | -743.0 | -514.6 | |
| 1.53 | 2.33 | 0.86 | 1.31 | -18.21 | 353.91 | -13.14 | 152.99 | 0.4775 | 857.2 | 841.9 | |
| 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. | |