SDO HMI 2013-09-18 00:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.35 | 122.08 | 42.60 | 279.11 | -17.52 | 59.06 | -74.26 | 109.83 | 0.9765 | 218.1 | 50.8 | |
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back to the solar disc SDO HMI 2013-09-18 00:59:04 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 |
| 12.78 | 115.43 | 27.77 | 256.22 | -17.59 | 59.67 | -73.65 | 110.02 | 0.9746 | 551.8 | 90.4 | |
| 6.57 | -1.00 | 14.83 | -1.00 | -17.66 | 59.13 | -74.19 | 109.98 | 0.9766 | -329.4 | 999999 | |
| 0.00 | 4.70 | 0.00 | 16.54 | -16.58 | 54.14 | -79.18 | 107.98 | 0.9904 | -435.0 | -324.9 | |
| 0.00 | 1.95 | 0.00 | 6.35 | -16.13 | 54.67 | -78.66 | 107.62 | 0.9889 | -277.0 | -302.3 | |
| 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. | |