SDO HMI 2014-04-18 10:00:34 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 19.50 | 0.00 | 10.17 | -16.67 | 201.23 | -12.83 | 134.55 | 0.2920 | -449.3 | -320.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 10:00:34 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 | 1.24 | 0.00 | 0.62 | -12.97 | 208.18 | -5.89 | 143.14 | 0.1674 | 899.0 | 682.4 | |
| 0.00 | 3.37 | 0.00 | 1.70 | -13.64 | 207.78 | -6.28 | 143.73 | 0.1805 | 769.0 | 719.9 | |
| 0.00 | 1.86 | 0.00 | 0.94 | -11.88 | 205.91 | -8.16 | 129.62 | 0.1811 | -906.0 | -743.2 | |
| 0.00 | 1.42 | 0.00 | 0.73 | -16.19 | 202.82 | -11.24 | 135.41 | 0.2680 | -842.0 | -597.7 | |
| 0.00 | 4.34 | 0.00 | 2.24 | -16.43 | 202.36 | -11.71 | 134.93 | 0.2762 | -827.0 | -663.3 | |
| 0.00 | 0.89 | 0.00 | 0.46 | -15.66 | 202.09 | -11.98 | 132.17 | 0.2709 | -835.0 | -728.0 | |
| 0.00 | 1.06 | 0.00 | 0.56 | -15.78 | 196.05 | -18.01 | 121.96 | 0.3523 | -727.0 | -557.7 | |
| 0.00 | 2.48 | 0.00 | 1.37 | -23.81 | 194.44 | -19.63 | 136.32 | 0.4468 | -682.0 | -544.7 | |
| 0.00 | 2.22 | 0.00 | 1.21 | -20.08 | 193.95 | -20.11 | 128.81 | 0.4162 | -837.0 | -584.7 | |
| 0.00 | 0.62 | 0.00 | 0.34 | -16.38 | 192.72 | -21.34 | 119.52 | 0.4029 | -505.0 | -553.6 | |
| 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. | |