| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 28.71 | 151.17 | 21.74 | 113.24 | 11.88 | 262.89 | 45.54 | 291.23 | 0.7502 | -570.8 | -255.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 04:00:34 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 |
| 15.06 | 141.42 | 11.45 | 107.14 | 11.95 | 263.78 | 46.43 | 290.81 | 0.7606 | -772.3 | -291.2 | |
| 13.65 | -1.00 | 10.29 | -1.00 | 11.62 | 263.49 | 46.14 | 290.50 | 0.7563 | -1082.6 | 999999 | |
| 0.00 | 1.15 | 0.00 | 0.82 | 12.15 | 259.72 | 42.37 | 292.82 | 0.7171 | -522.0 | -455.7 | |
| 0.00 | 1.51 | 0.00 | 1.08 | 17.33 | 258.27 | 40.92 | 300.21 | 0.7258 | -494.0 | -489.1 | |
| 0.00 | 0.80 | 0.00 | 0.47 | 10.18 | 247.36 | 30.01 | 297.45 | 0.5569 | 657.0 | 491.7 | |
| 0.00 | 1.33 | 0.00 | 0.79 | 13.03 | 245.89 | 28.54 | 303.20 | 0.5585 | 603.0 | 469.2 | |
| 0.00 | 0.97 | 0.00 | 0.58 | 12.99 | 245.71 | 28.36 | 303.31 | 0.5560 | 714.0 | 604.2 | |
| 0.00 | 1.06 | 0.00 | 0.63 | 12.87 | 245.21 | 27.86 | 303.59 | 0.5490 | 720.0 | 681.9 | |
| 0.00 | 0.80 | 0.00 | 0.47 | 12.73 | 244.73 | 27.38 | 303.81 | 0.5421 | 827.0 | 710.1 | |
| 0.00 | 2.13 | 0.00 | 1.26 | 13.20 | 244.72 | 27.37 | 304.56 | 0.5457 | 503.0 | 538.1 | |
| 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. | |