SDO HMI 2014-05-18 19:00:38 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 |
| 9.71 | 33.53 | 6.92 | 24.16 | -17.65 | 217.31 | 44.73 | 247.63 | 0.7275 | -258.5 | -179.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 19:00:38 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 |
| 2.16 | 12.04 | 1.57 | 8.81 | -18.13 | 217.99 | 45.41 | 247.19 | 0.7365 | 519.5 | -284.6 | |
| 1.98 | 4.58 | 1.43 | 3.32 | -17.35 | 217.73 | 45.15 | 248.15 | 0.7314 | 613.7 | 471.4 | |
| 0.00 | 1.98 | 0.00 | 1.44 | -18.74 | 217.78 | 45.20 | 246.32 | 0.7360 | -809.0 | -582.8 | |
| 0.00 | 2.16 | 0.00 | 1.55 | -17.24 | 217.25 | 44.67 | 248.15 | 0.7257 | 640.0 | 638.8 | |
| 0.00 | 1.89 | 0.00 | 1.37 | -18.82 | 217.31 | 44.73 | 246.06 | 0.7311 | -699.0 | -613.3 | |
| 0.00 | 1.26 | 0.00 | 0.91 | -19.20 | 217.30 | 44.72 | 245.56 | 0.7323 | -502.0 | -400.1 | |
| 5.57 | 8.45 | 3.92 | 5.94 | -16.48 | 216.18 | 43.60 | 248.85 | 0.7114 | -707.4 | -226.2 | |
| 0.00 | 1.17 | 0.00 | 0.82 | -17.28 | 215.67 | 43.09 | 247.58 | 0.7080 | -632.0 | -497.2 | |
| 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. | |