| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 18.19 | 0.00 | 9.53 | -19.92 | 162.93 | -9.87 | 152.46 | 0.3141 | -642.9 | -594.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 13:00:34 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 | 0.89 | 0.00 | 0.44 | -5.88 | 176.87 | 4.07 | 258.55 | 0.0723 | 866.0 | 709.6 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -19.00 | 170.75 | -2.05 | 172.02 | 0.2442 | -875.0 | -691.6 | |
| 0.00 | 0.89 | 0.00 | 0.45 | -19.05 | 168.77 | -4.03 | 164.65 | 0.2518 | -637.0 | -527.9 | |
| 0.00 | 0.44 | 0.00 | 0.23 | -19.33 | 168.60 | -4.19 | 164.36 | 0.2571 | -595.0 | -629.4 | |
| 0.00 | 1.33 | 0.00 | 0.70 | -25.16 | 167.55 | -5.25 | 166.46 | 0.3551 | -850.0 | -690.7 | |
| 0.00 | 1.06 | 0.00 | 0.54 | -10.08 | 164.42 | -8.38 | 121.57 | 0.1691 | -822.0 | -501.2 | |
| 0.00 | 1.60 | 0.00 | 0.87 | -26.63 | 161.96 | -10.83 | 155.51 | 0.4071 | -902.0 | -754.1 | |
| 0.00 | 0.71 | 0.00 | 0.36 | -16.22 | 162.16 | -10.63 | 137.71 | 0.2645 | -804.0 | -618.1 | |
| 0.00 | 1.15 | 0.00 | 0.60 | -19.84 | 161.90 | -10.90 | 145.25 | 0.3133 | -867.0 | -729.2 | |
| 0.00 | 2.40 | 0.00 | 1.25 | -18.77 | 161.23 | -11.57 | 141.47 | 0.3061 | -627.0 | -740.8 | |
| 0.00 | 0.89 | 0.00 | 0.46 | -18.43 | 159.85 | -12.94 | 137.66 | 0.3168 | -616.0 | -445.0 | |
| 0.00 | 1.51 | 0.00 | 0.79 | -18.00 | 159.82 | -12.97 | 136.60 | 0.3121 | -803.0 | -672.1 | |
| 0.00 | 0.62 | 0.00 | 0.34 | -23.73 | 158.28 | -14.52 | 144.57 | 0.3975 | -573.0 | -499.0 | |
| 0.00 | 2.75 | 0.00 | 1.48 | -23.44 | 158.08 | -14.72 | 143.74 | 0.3958 | -790.0 | -680.9 | |
| 0.00 | 0.80 | 0.00 | 0.43 | -23.50 | 157.80 | -15.00 | 143.34 | 0.3992 | -748.0 | -650.6 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
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. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
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. |
||
| 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. | |