SDO HMI 2014-04-12 20:00:33 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 | 11.20 | 0.00 | 5.62 | -9.70 | 282.06 | -5.73 | 134.15 | 0.1385 | -95.2 | -149.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-12 20:00:33 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 | 1.41 | 0.00 | 0.70 | -9.27 | 291.17 | 3.39 | 223.91 | 0.0845 | 776.0 | 576.4 | |
| 0.00 | 0.97 | 0.00 | 0.48 | -10.93 | 288.10 | 0.31 | 183.43 | 0.0899 | 870.0 | 719.8 | |
| 0.00 | 0.88 | 0.00 | 0.44 | -5.60 | 286.47 | -1.32 | 81.40 | 0.0232 | 625.0 | 397.3 | |
| 0.00 | 1.15 | 0.00 | 0.57 | -7.54 | 284.40 | -3.38 | 117.58 | 0.0663 | 914.0 | 645.6 | |
| 0.00 | 1.41 | 0.00 | 0.71 | -11.31 | 281.41 | -6.38 | 131.55 | 0.1462 | -764.0 | -609.1 | |
| 0.00 | 1.77 | 0.00 | 0.89 | -10.92 | 279.38 | -8.40 | 122.16 | 0.1703 | -813.0 | -614.2 | |
| 0.00 | 0.79 | 0.00 | 0.40 | -10.10 | 277.21 | -10.58 | 112.96 | 0.1972 | -722.0 | -558.3 | |
| 0.00 | 1.85 | 0.00 | 0.94 | -9.73 | 277.16 | -10.63 | 111.13 | 0.1958 | -952.0 | -680.9 | |
| 0.00 | 0.97 | 0.00 | 0.49 | -10.33 | 275.58 | -12.21 | 111.34 | 0.2243 | -791.0 | -597.5 | |
| 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. | |