| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 15.68 | 0.00 | 8.30 | -16.03 | 200.42 | -16.39 | 127.12 | 0.3319 | -402.8 | -211.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 05:00:34 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 |
| 0.00 | 3.01 | 0.00 | 1.52 | -13.16 | 208.48 | -8.32 | 134.08 | 0.1971 | 843.0 | 684.6 | |
| 0.00 | 2.22 | 0.00 | 1.12 | -13.03 | 208.08 | -8.72 | 132.29 | 0.2006 | 872.0 | 669.5 | |
| 0.00 | 0.89 | 0.00 | 0.46 | -18.16 | 202.57 | -14.23 | 133.82 | 0.3251 | -841.0 | -705.4 | |
| 0.00 | 1.68 | 0.00 | 0.88 | -16.03 | 202.39 | -14.41 | 128.14 | 0.3055 | -828.0 | -611.1 | |
| 0.00 | 2.57 | 0.00 | 1.34 | -16.49 | 202.13 | -14.68 | 128.86 | 0.3134 | -937.0 | -790.9 | |
| 0.00 | 1.06 | 0.00 | 0.60 | -23.78 | 194.47 | -22.33 | 132.83 | 0.4761 | -573.0 | -470.0 | |
| 0.00 | 2.04 | 0.00 | 1.12 | -15.82 | 192.74 | -24.06 | 115.76 | 0.4373 | -809.0 | -638.9 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -15.69 | 192.42 | -24.38 | 115.22 | 0.4412 | -692.0 | -520.4 | |
| 0.00 | 1.15 | 0.00 | 0.67 | -18.89 | 187.00 | -29.80 | 117.57 | 0.5325 | -660.0 | -484.2 | |
| 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. | |