SDO HMI 2011-08-27 17:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.36 | 0.00 | 3.62 | -18.35 | 356.78 | 13.94 | 208.11 | 0.4867 | 501.2 | 302.2 | |
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back to the solar disc SDO HMI 2011-08-27 17:59:08 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 | 1.97 | 0.00 | 1.13 | -18.28 | 358.52 | 15.68 | 211.18 | 0.4977 | 834.0 | 666.7 | |
| 0.00 | 1.43 | 0.00 | 0.82 | -18.08 | 358.47 | 15.63 | 211.32 | 0.4947 | 898.0 | 719.5 | |
| 0.00 | 0.90 | 0.00 | 0.51 | -17.95 | 357.50 | 14.66 | 209.87 | 0.4855 | 702.0 | 626.1 | |
| 0.00 | 2.06 | 0.00 | 1.16 | -18.80 | 353.57 | 10.74 | 202.08 | 0.4710 | -429.0 | -488.9 | |
| 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. | |