SDO HMI 2011-02-12 11:58:57 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 |
| 1.46 | 22.86 | 0.77 | 11.92 | -20.41 | 67.54 | 11.78 | 217.03 | 0.3134 | -38.7 | -44.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-12 11:58:57 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 |
| 0.00 | 0.43 | 0.00 | 0.23 | -20.56 | 72.23 | 16.46 | 227.37 | 0.3622 | 631.0 | 499.8 | |
| 0.00 | 3.08 | 0.00 | 1.63 | -20.13 | 72.15 | 16.38 | 228.17 | 0.3569 | 998.0 | 804.9 | |
| 0.00 | 1.46 | 0.00 | 0.77 | -20.41 | 72.18 | 16.41 | 227.62 | 0.3600 | 896.0 | 629.7 | |
| 1.46 | 3.51 | 0.77 | 1.86 | -20.23 | 71.96 | 16.19 | 227.65 | 0.3556 | 1055.8 | 949.7 | |
| 0.00 | 2.05 | 0.00 | 1.08 | -20.02 | 71.05 | 15.29 | 226.59 | 0.3425 | 887.0 | 708.6 | |
| 0.00 | 0.86 | 0.00 | 0.45 | -20.96 | 70.95 | 15.19 | 224.33 | 0.3516 | 688.0 | 521.6 | |
| 0.00 | 1.63 | 0.00 | 0.84 | -20.35 | 64.79 | 9.02 | 211.77 | 0.2805 | -883.0 | -761.0 | |
| 0.00 | 2.74 | 0.00 | 1.41 | -20.78 | 64.46 | 8.70 | 210.02 | 0.2839 | -843.0 | -788.5 | |
| 0.00 | 2.14 | 0.00 | 1.10 | -19.81 | 63.93 | 8.16 | 210.35 | 0.2656 | -900.0 | -725.1 | |
| 0.00 | 1.88 | 0.00 | 0.97 | -20.68 | 62.99 | 7.22 | 205.86 | 0.2708 | -969.0 | -771.0 | |
| 0.00 | 1.11 | 0.00 | 0.57 | -20.69 | 62.32 | 6.55 | 203.75 | 0.2663 | -821.0 | -669.2 | |
| 0.00 | 1.97 | 0.00 | 1.01 | -21.08 | 59.95 | 4.18 | 195.29 | 0.2591 | -953.0 | -754.3 | |
| 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. | |