group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
38.64 | 206.33 | 50.60 | 270.80 | -17.60 | 59.04 | -63.84 | 112.39 | 0.9267 | 565.6 | 121.2 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-09-18 19:59:04 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 |
32.79 | 198.71 | 42.34 | 258.30 | -17.62 | 59.37 | -63.51 | 112.49 | 0.9249 | 794.4 | 138.7 | |
4.34 | -1.00 | 5.75 | -1.00 | -17.69 | 58.74 | -64.13 | 112.39 | 0.9288 | -191.2 | 999999 | |
0.00 | 1.42 | 0.00 | 2.09 | -18.54 | 56.44 | -66.44 | 112.65 | 0.9431 | -299.0 | -286.7 | |
0.00 | 0.97 | 0.00 | 1.66 | -17.53 | 53.25 | -69.63 | 110.83 | 0.9577 | -298.0 | -272.5 | |
0.00 | 0.80 | 0.00 | 1.32 | -16.94 | 53.56 | -69.32 | 110.30 | 0.9556 | -392.0 | -391.1 | |
0.00 | 1.42 | 0.00 | 2.40 | -16.86 | 53.17 | -69.71 | 110.13 | 0.9573 | -286.0 | -196.6 | |
1.51 | 3.01 | 2.51 | 5.03 | -16.43 | 53.25 | -69.63 | 109.71 | 0.9565 | -150.2 | -174.3 |
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. |