SDO HMI 2011-02-20 02:58:57 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 44.73 | 225.68 | 109.54 | 594.22 | -18.98 | 36.03 | 80.70 | 251.91 | 0.9809 | -217.5 | 16.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-20 02:58:57 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 |
| 8.67 | 97.21 | 31.84 | 335.71 | -18.58 | 39.57 | 84.24 | 252.10 | 0.9917 | -689.2 | -58.5 | |
| 5.15 | -1.00 | 16.18 | -1.00 | -18.52 | 37.97 | 82.63 | 252.28 | 0.9879 | -268.7 | 999999 | |
| 4.81 | -1.00 | 14.50 | -1.00 | -18.52 | 37.72 | 82.38 | 252.30 | 0.9873 | 380.4 | 999999 | |
| 0.00 | 34.18 | 0.00 | 79.63 | -18.51 | 34.65 | 79.32 | 252.51 | 0.9780 | 349.0 | 259.2 | |
| 0.00 | 3.78 | 0.00 | 9.04 | -19.49 | 35.11 | 79.77 | 251.48 | 0.9793 | 519.0 | 430.1 | |
| 0.00 | 7.21 | 0.00 | 14.68 | -19.60 | 32.85 | 77.52 | 251.48 | 0.9711 | 411.0 | 303.5 | |
| 4.98 | 31.26 | 9.56 | 61.36 | -19.18 | 31.90 | 76.57 | 251.96 | 0.9673 | -289.6 | 46.3 | |
| 5.75 | 27.05 | 10.93 | 51.97 | -20.24 | 31.72 | 76.39 | 250.87 | 0.9664 | -367.5 | -148.7 | |
| 6.53 | -8.00 | 12.62 | -8.00 | -20.45 | 32.06 | 76.73 | 250.64 | 0.9678 | 524.5 | 999999 | |
| 0.00 | 2.32 | 0.00 | 4.24 | -20.68 | 31.19 | 75.86 | 250.43 | 0.9641 | -200.0 | -69.5 | |
| 0.00 | 3.18 | 0.00 | 5.86 | -21.04 | 31.35 | 76.02 | 250.05 | 0.9647 | -175.0 | -61.1 | |
| 0.00 | 1.03 | 0.00 | 1.97 | -21.33 | 31.83 | 76.49 | 249.73 | 0.9667 | -354.0 | -300.8 | |
| 0.00 | 2.15 | 0.00 | 3.82 | -20.96 | 30.70 | 75.37 | 250.15 | 0.9619 | 362.0 | 296.6 | |
| 0.00 | 0.77 | 0.00 | 1.28 | -20.50 | 29.45 | 74.11 | 250.65 | 0.9561 | -315.0 | -265.9 | |
| 0.00 | 0.60 | 0.00 | 0.96 | -20.37 | 28.70 | 73.36 | 250.81 | 0.9525 | -363.0 | -342.7 | |
| 0.00 | 1.37 | 0.00 | 2.19 | -20.51 | 28.54 | 73.21 | 250.66 | 0.9517 | -282.0 | -274.2 | |
| 0.00 | 0.86 | 0.00 | 1.50 | -22.05 | 30.32 | 74.99 | 249.02 | 0.9601 | -112.0 | -87.7 | |
| 0.00 | 0.77 | 0.00 | 1.22 | -20.75 | 28.40 | 73.06 | 250.41 | 0.9509 | -223.0 | -207.9 | |
| 3.69 | 5.07 | 6.14 | 8.43 | -21.61 | 29.43 | 74.10 | 249.49 | 0.9560 | -253.0 | -118.4 | |
| 5.15 | 6.18 | 7.77 | 9.31 | -20.64 | 27.41 | 72.07 | 250.54 | 0.9458 | -441.6 | -376.6 | |
| 0.00 | 0.69 | 0.00 | 1.05 | -20.86 | 27.67 | 72.34 | 250.30 | 0.9472 | -339.0 | -357.2 | |
| 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. | |