group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
8.14 | 17.63 | 5.96 | 13.03 | -16.36 | 244.60 | -42.81 | 118.48 | 0.7441 | 271.3 | -51.5 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-04 16:59:10 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 |
4.97 | 6.24 | 3.63 | 4.56 | -16.45 | 245.27 | -42.14 | 118.94 | 0.7377 | 730.9 | 571.1 | |
0.00 | 1.27 | 0.00 | 0.92 | -16.08 | 245.36 | -42.05 | 118.54 | 0.7348 | 644.0 | 550.6 | |
1.81 | 5.42 | 1.33 | 4.01 | -16.73 | 244.93 | -42.48 | 119.11 | 0.7425 | 438.9 | 274.1 | |
1.36 | -3.00 | 1.00 | -3.00 | -16.94 | 244.74 | -42.67 | 119.27 | 0.7455 | 455.9 | 999999 | |
0.00 | 2.26 | 0.00 | 1.68 | -16.24 | 244.02 | -43.39 | 118.03 | 0.7494 | -613.0 | -530.5 | |
0.00 | 0.72 | 0.00 | 0.55 | -15.24 | 242.71 | -44.70 | 116.14 | 0.7583 | -330.0 | -463.1 | |
0.00 | 1.72 | 0.00 | 1.31 | -15.41 | 242.53 | -44.88 | 116.27 | 0.7609 | -692.0 | -543.0 |
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. |