group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3.58 | 17.53 | 1.86 | 9.20 | 14.98 | 227.93 | -3.57 | 10.20 | 0.3248 | -223.8 | -347.5 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-07 21:59:08 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 | 1.07 | 0.00 | 0.58 | 19.16 | 231.32 | -0.18 | 0.45 | 0.3859 | -727.0 | -559.0 | |
3.58 | 10.74 | 1.86 | 5.57 | 13.63 | 229.55 | -1.95 | 6.44 | 0.2965 | -1118.0 | -774.8 | |
0.00 | 0.81 | 0.00 | 0.42 | 14.27 | 227.48 | -4.02 | 12.60 | 0.3128 | -712.0 | -640.7 | |
0.00 | 1.16 | 0.00 | 0.61 | 14.53 | 226.16 | -5.34 | 16.30 | 0.3225 | -662.0 | -522.9 | |
0.00 | 1.25 | 0.00 | 0.67 | 17.47 | 223.53 | -7.98 | 20.38 | 0.3817 | 768.0 | 573.3 | |
0.00 | 1.61 | 0.00 | 0.87 | 17.87 | 223.03 | -8.48 | 21.15 | 0.3904 | 806.0 | 564.6 | |
0.00 | 0.89 | 0.00 | 0.48 | 18.00 | 222.77 | -8.74 | 21.61 | 0.3940 | 847.0 | 754.3 |
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. |