SDO HMI 2014-04-08 21:00:33 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 16.38 | 0.00 | 8.50 | -18.08 | 328.65 | -11.38 | 139.66 | 0.2847 | 561.1 | 556.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 21:00:33 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 | 1.76 | 0.00 | 0.91 | -21.30 | 333.16 | -6.88 | 157.03 | 0.2871 | 544.0 | 466.0 | |
| 0.00 | 2.64 | 0.00 | 1.33 | -14.09 | 332.69 | -7.34 | 138.50 | 0.1879 | 1016.0 | 755.2 | |
| 0.00 | 2.11 | 0.00 | 1.08 | -17.04 | 332.17 | -7.86 | 145.58 | 0.2325 | 711.0 | 669.8 | |
| 0.00 | 1.32 | 0.00 | 0.68 | -17.79 | 331.24 | -8.79 | 144.50 | 0.2517 | 1006.0 | 819.7 | |
| 0.00 | 1.59 | 0.00 | 0.82 | -17.87 | 329.22 | -10.81 | 139.10 | 0.2738 | 973.0 | 806.1 | |
| 0.00 | 1.06 | 0.00 | 0.54 | -17.53 | 329.05 | -10.98 | 137.79 | 0.2716 | 948.0 | 837.2 | |
| 0.00 | 1.41 | 0.00 | 0.73 | -18.27 | 327.75 | -12.29 | 136.55 | 0.2952 | 733.0 | 627.5 | |
| 0.00 | 1.59 | 0.00 | 0.82 | -17.19 | 327.53 | -12.50 | 133.32 | 0.2855 | 900.0 | 668.2 | |
| 0.00 | 1.23 | 0.00 | 0.64 | -18.84 | 326.11 | -13.93 | 134.50 | 0.3207 | 863.0 | 663.9 | |
| 0.00 | 0.70 | 0.00 | 0.40 | -22.37 | 316.38 | -23.65 | 127.89 | 0.4719 | -855.0 | -715.1 | |
| 0.00 | 0.97 | 0.00 | 0.55 | -22.71 | 314.78 | -25.25 | 126.90 | 0.4940 | -667.0 | -432.2 | |
| 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. | |