SDO HMI 2013-09-18 14:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.86 | 180.62 | 44.66 | 266.35 | -17.54 | 59.05 | -66.59 | 111.59 | 0.9423 | 424.1 | 58.6 | |
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back to the solar disc SDO HMI 2013-09-18 14:59:04 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 |
| 26.60 | 172.72 | 38.34 | 251.44 | -17.58 | 59.44 | -66.20 | 111.72 | 0.9404 | 602.9 | 77.8 | |
| 4.26 | -1.00 | 6.32 | -1.00 | -17.59 | 58.79 | -66.85 | 111.56 | 0.9439 | -188.6 | 999999 | |
| 0.00 | 0.98 | 0.00 | 1.63 | -18.51 | 56.49 | -69.15 | 111.94 | 0.9567 | -277.0 | -254.8 | |
| 0.00 | 1.60 | 0.00 | 3.15 | -17.55 | 53.41 | -72.23 | 110.28 | 0.9690 | -338.0 | -263.5 | |
| 0.00 | 1.95 | 0.00 | 3.57 | -16.19 | 54.28 | -71.36 | 109.08 | 0.9641 | -449.0 | -353.7 | |
| 0.00 | 3.37 | 0.00 | 6.56 | -16.49 | 53.40 | -72.24 | 109.20 | 0.9681 | -224.0 | -91.2 | |
| 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. | |