| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.81 | 20.15 | 5.89 | 24.31 | -25.42 | 167.30 | 66.31 | 245.05 | 0.9137 | -8.0 | 37.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 17:00:31 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 | 1.58 | 0.00 | 2.08 | -24.94 | 169.70 | 68.71 | 245.73 | 0.9284 | -295.0 | -195.7 | |
| 1.31 | 2.63 | 1.69 | 3.38 | -24.65 | 169.08 | 68.09 | 246.02 | 0.9246 | -393.2 | -285.2 | |
| 0.00 | 0.61 | 0.00 | 0.77 | -25.67 | 168.40 | 67.41 | 244.87 | 0.9209 | -261.0 | -321.1 | |
| 0.00 | 0.96 | 0.00 | 1.15 | -25.09 | 167.00 | 66.01 | 245.40 | 0.9117 | -302.0 | -282.3 | |
| 0.00 | 2.80 | 0.00 | 3.20 | -24.05 | 165.72 | 64.73 | 246.45 | 0.9026 | 450.0 | 285.2 | |
| 3.50 | 9.02 | 4.20 | 10.77 | -26.07 | 166.99 | 66.00 | 244.33 | 0.9122 | 460.0 | 347.3 | |
| 0.00 | 2.02 | 0.00 | 2.35 | -25.88 | 166.30 | 65.30 | 244.48 | 0.9076 | -477.0 | -327.8 | |
| 0.00 | 0.53 | 0.00 | 0.61 | -25.70 | 166.11 | 65.12 | 244.66 | 0.9062 | -478.0 | -450.0 | |
| 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. | |