SDO HMI 2011-08-13 21:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.40 | 0.00 | 3.11 | -23.30 | 173.17 | 7.53 | 193.72 | 0.5139 | -372.0 | -328.1 | |
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back to the solar disc SDO HMI 2011-08-13 21:59:09 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 | 1.35 | 0.00 | 0.76 | -20.68 | 175.04 | 9.39 | 198.50 | 0.4831 | 735.0 | 501.0 | |
| 0.00 | 1.26 | 0.00 | 0.73 | -23.86 | 172.67 | 7.03 | 192.48 | 0.5199 | -870.0 | -769.1 | |
| 0.00 | 1.17 | 0.00 | 0.68 | -24.14 | 172.55 | 6.91 | 192.15 | 0.5236 | -731.0 | -622.8 | |
| 0.00 | 1.62 | 0.00 | 0.94 | -24.39 | 172.50 | 6.86 | 191.95 | 0.5270 | -622.0 | -445.3 | |
| 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. | |