SDO HMI 2011-02-28 12:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.40 | 21.20 | 2.41 | 11.84 | -22.91 | 181.06 | -23.45 | 127.43 | 0.4631 | -111.7 | -180.3 | |
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back to the solar disc SDO HMI 2011-02-28 12:58:58 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 |
| 4.40 | 8.02 | 2.41 | 4.39 | -21.68 | 183.17 | -21.34 | 127.36 | 0.4272 | 906.5 | 877.3 | |
| 0.00 | 1.38 | 0.00 | 0.77 | -23.19 | 180.46 | -24.04 | 127.34 | 0.4729 | -709.0 | -464.8 | |
| 0.00 | 0.86 | 0.00 | 0.48 | -22.79 | 180.51 | -24.00 | 126.64 | 0.4692 | -509.0 | -361.5 | |
| 0.00 | 1.90 | 0.00 | 1.07 | -23.40 | 180.21 | -24.29 | 127.46 | 0.4776 | -833.0 | -662.0 | |
| 0.00 | 1.03 | 0.00 | 0.58 | -22.35 | 180.24 | -24.27 | 125.55 | 0.4691 | 577.0 | 374.4 | |
| 0.00 | 1.12 | 0.00 | 0.64 | -24.55 | 179.58 | -24.92 | 128.87 | 0.4943 | -701.0 | -500.8 | |
| 0.00 | 5.86 | 0.00 | 3.32 | -23.77 | 179.60 | -24.90 | 127.53 | 0.4879 | -339.0 | -524.4 | |
| 0.00 | 1.03 | 0.00 | 0.59 | -24.79 | 178.70 | -25.80 | 128.44 | 0.5066 | -722.0 | -597.1 | |
| 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. | |