SDO HMI 2014-03-30 04:00:31 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 | 18.85 | 0.00 | 10.67 | -26.14 | 87.56 | -20.56 | 139.91 | 0.4658 | 366.9 | 223.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 04:00:31 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 | 2.54 | 0.00 | 1.31 | -21.31 | 100.08 | -8.05 | 152.82 | 0.2868 | 858.0 | 588.1 | |
| 0.00 | 0.96 | 0.00 | 0.50 | -21.45 | 99.58 | -8.54 | 151.69 | 0.2928 | 654.0 | 503.6 | |
| 0.00 | 0.88 | 0.00 | 0.46 | -22.41 | 97.55 | -10.57 | 148.17 | 0.3231 | 777.0 | 592.4 | |
| 0.00 | 1.05 | 0.00 | 0.55 | -21.82 | 94.89 | -13.23 | 141.21 | 0.3407 | 752.0 | 586.2 | |
| 0.00 | 1.14 | 0.00 | 0.63 | -27.04 | 91.28 | -16.84 | 143.81 | 0.4389 | 769.0 | 615.9 | |
| 0.00 | 1.32 | 0.00 | 0.73 | -27.05 | 90.71 | -17.41 | 142.97 | 0.4443 | 657.0 | 578.6 | |
| 0.00 | 1.40 | 0.00 | 0.78 | -27.01 | 90.54 | -17.58 | 142.66 | 0.4454 | 914.0 | 734.8 | |
| 0.00 | 1.93 | 0.00 | 1.07 | -26.99 | 89.91 | -18.21 | 141.71 | 0.4512 | 834.0 | 663.1 | |
| 0.00 | 1.49 | 0.00 | 0.83 | -26.52 | 89.35 | -18.77 | 140.19 | 0.4515 | 813.0 | 680.9 | |
| 0.00 | 0.53 | 0.00 | 0.31 | -27.35 | 82.35 | -25.77 | 133.27 | 0.5325 | -503.0 | -549.5 | |
| 0.00 | 1.14 | 0.00 | 0.70 | -30.02 | 77.92 | -30.20 | 133.28 | 0.6005 | -619.0 | -487.8 | |
| 0.00 | 1.93 | 0.00 | 1.20 | -29.79 | 76.76 | -31.37 | 132.05 | 0.6106 | -594.0 | -535.6 | |
| 0.00 | 2.54 | 0.00 | 1.60 | -27.51 | 74.64 | -33.48 | 127.31 | 0.6175 | -542.0 | -454.9 | |
| 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. | |