group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
9.86 | 51.11 | 11.27 | 56.97 | -22.28 | 154.57 | 58.21 | 241.52 | 0.8945 | 349.6 | 114.0 |
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-10-18 02:59:00 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 |
8.55 | 37.34 | 10.06 | 44.17 | -22.45 | 156.41 | 60.04 | 242.02 | 0.9085 | 598.7 | 92.5 | |
0.00 | 1.05 | 0.00 | 1.21 | -22.58 | 155.91 | 59.55 | 241.73 | 0.9056 | 704.0 | 589.8 | |
0.87 | 3.40 | 0.82 | 3.20 | -21.32 | 149.04 | 52.68 | 240.61 | 0.8523 | 578.6 | 428.8 | |
0.00 | 2.36 | 0.00 | 2.20 | -21.46 | 148.69 | 52.32 | 240.31 | 0.8500 | 521.0 | 380.3 | |
0.00 | 1.13 | 0.00 | 1.04 | -20.91 | 148.10 | 51.74 | 240.67 | 0.8434 | -355.0 | -267.8 | |
0.00 | 2.09 | 0.00 | 1.97 | -22.30 | 148.50 | 52.13 | 239.31 | 0.8514 | 523.0 | 436.3 | |
0.44 | 1.48 | 0.39 | 1.33 | -20.68 | 147.27 | 50.90 | 240.58 | 0.8357 | -516.8 | -410.1 | |
0.00 | 1.13 | 0.00 | 0.94 | -21.99 | 142.87 | 46.50 | 237.09 | 0.8035 | -403.0 | -336.8 | |
0.00 | 1.13 | 0.00 | 0.91 | -23.24 | 140.71 | 44.35 | 234.55 | 0.7907 | -382.0 | -430.4 |
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. |