group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
2.69 | 12.70 | 1.40 | 6.65 | 14.51 | 228.62 | 4.81 | 345.21 | 0.3217 | -581.5 | -232.7 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-08 11:59:08 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 | 0.98 | 0.00 | 0.52 | 13.83 | 235.71 | 11.90 | 325.75 | 0.3572 | -829.0 | -571.4 | |
0.00 | 1.25 | 0.00 | 0.66 | 14.07 | 231.01 | 7.20 | 337.87 | 0.3239 | -746.0 | -545.5 | |
2.69 | 3.49 | 1.40 | 1.82 | 13.71 | 229.65 | 5.84 | 341.36 | 0.3105 | -971.1 | -906.4 | |
0.00 | 1.52 | 0.00 | 0.79 | 13.79 | 227.77 | 3.96 | 347.16 | 0.3034 | -834.0 | -518.4 | |
0.00 | 2.51 | 0.00 | 1.31 | 14.90 | 227.29 | 3.48 | 349.39 | 0.3199 | -943.0 | -765.4 | |
0.00 | 2.95 | 0.00 | 1.55 | 15.92 | 225.58 | 1.77 | 354.87 | 0.3327 | 990.0 | 791.2 |
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. |