SDO HMI 2011-09-07 03:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.09 | 17.04 | 8.61 | 15.13 | -17.65 | 256.05 | 50.81 | 242.97 | 0.8301 | -412.8 | 244.1 | |
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back to the solar disc SDO HMI 2011-09-07 03:59:07 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 |
| 1.79 | 6.96 | 1.73 | 6.76 | -19.55 | 258.97 | 53.73 | 242.10 | 0.8618 | 540.4 | 439.2 | |
| 8.30 | 9.37 | 6.88 | 7.76 | -15.88 | 253.69 | 48.45 | 243.94 | 0.8035 | -666.1 | -451.7 | |
| 0.00 | 0.71 | 0.00 | 0.61 | -19.07 | 253.73 | 48.49 | 240.33 | 0.8168 | -319.0 | -354.1 | |
| 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. | |