group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
54.80 | 274.09 | 55.57 | 276.38 | -17.63 | 58.71 | -55.93 | 114.92 | 0.8722 | 488.5 | 137.4 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-09-19 10:59:04 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 |
48.33 | 260.00 | 48.18 | 259.78 | -17.63 | 59.08 | -55.56 | 115.05 | 0.8695 | 683.8 | 160.4 | |
2.04 | -1.00 | 2.09 | -1.00 | -18.60 | 58.32 | -56.31 | 115.82 | 0.8780 | -267.4 | 999999 | |
0.00 | 1.15 | 0.00 | 1.21 | -18.83 | 57.68 | -56.96 | 115.83 | 0.8835 | 250.0 | 192.0 | |
0.00 | 0.89 | 0.00 | 0.96 | -17.96 | 56.35 | -58.29 | 114.44 | 0.8908 | -248.0 | -224.8 | |
0.35 | 1.15 | 0.42 | 1.37 | -17.01 | 53.20 | -61.44 | 112.43 | 0.9105 | -555.5 | -511.6 | |
0.89 | 2.13 | 1.05 | 2.52 | -16.61 | 53.22 | -61.42 | 112.03 | 0.9095 | -523.2 | -463.6 | |
0.00 | 1.68 | 0.00 | 2.04 | -17.45 | 52.74 | -61.90 | 112.76 | 0.9144 | -512.0 | -387.8 | |
2.13 | 5.05 | 2.55 | 6.04 | -16.40 | 52.80 | -61.84 | 111.68 | 0.9119 | -448.3 | -329.1 | |
1.06 | 2.04 | 1.28 | 2.46 | -16.71 | 52.62 | -62.01 | 111.96 | 0.9136 | -233.3 | -156.5 |
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. |