SDO HMI 2014-05-20 17:00:38 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 |
| 35.63 | 84.65 | 27.52 | 65.99 | -17.67 | 196.17 | 48.94 | 248.64 | 0.7733 | 163.3 | 43.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 17:00:38 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 |
| 18.62 | 59.46 | 14.89 | 47.57 | -18.37 | 197.35 | 50.12 | 248.06 | 0.7874 | 774.7 | 199.3 | |
| 3.33 | -1.00 | 2.64 | -1.00 | -17.94 | 197.03 | 49.80 | 248.53 | 0.7831 | 814.0 | 999999 | |
| 0.00 | 1.80 | 0.00 | 1.33 | -16.06 | 193.90 | 46.67 | 250.11 | 0.7457 | -519.0 | -385.4 | |
| 0.00 | 1.17 | 0.00 | 0.86 | -16.12 | 193.69 | 46.46 | 249.96 | 0.7435 | -419.0 | -361.7 | |
| 5.04 | 22.22 | 3.70 | 16.23 | -16.29 | 193.37 | 46.14 | 249.66 | 0.7404 | -714.4 | -557.1 | |
| 8.64 | -5.00 | 6.29 | -5.00 | -15.86 | 193.06 | 45.83 | 250.14 | 0.7359 | -839.9 | 999999 | |
| 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. | |