group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 10.12 | 0.00 | 6.09 | 17.47 | 223.62 | 27.90 | 307.86 | 0.5678 | 529.4 | 502.9 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-10 14:59:08 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 | 1.52 | 0.00 | 0.94 | 13.96 | 228.34 | 32.63 | 298.61 | 0.5982 | -106.0 | -73.6 | |
0.00 | 3.05 | 0.00 | 1.83 | 17.95 | 223.42 | 27.71 | 308.63 | 0.5684 | 604.0 | 692.5 | |
0.00 | 2.33 | 0.00 | 1.41 | 18.50 | 223.41 | 27.70 | 309.43 | 0.5728 | 761.0 | 608.0 | |
0.00 | 1.88 | 0.00 | 1.12 | 18.02 | 222.65 | 26.93 | 309.50 | 0.5603 | 590.0 | 419.6 | |
0.00 | 1.34 | 0.00 | 0.79 | 17.90 | 220.19 | 24.47 | 311.92 | 0.5319 | 798.0 | 681.5 |
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. |