SDO HMI 2013-08-17 05:59:08 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 |
| 29.64 | 194.43 | 25.87 | 170.25 | -7.14 | 139.40 | -53.86 | 103.49 | 0.8262 | 764.4 | 220.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-17 05:59:08 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 | 1.80 | 0.00 | 1.57 | -9.81 | 140.14 | -53.13 | 106.85 | 0.8258 | 289.0 | 145.6 | |
| 29.64 | 189.93 | 25.87 | 166.02 | -7.06 | 139.45 | -53.81 | 103.41 | 0.8256 | 886.6 | 227.4 | |
| 0.00 | 0.72 | 0.00 | 0.73 | -14.85 | 135.94 | -57.32 | 111.22 | 0.8747 | -377.0 | -330.4 | |
| 0.00 | 0.90 | 0.00 | 0.84 | -6.51 | 136.58 | -56.68 | 102.01 | 0.8509 | 227.0 | 230.2 | |
| 0.00 | 1.08 | 0.00 | 1.09 | -11.02 | 135.01 | -58.26 | 106.70 | 0.8735 | -242.0 | -249.2 | |
| 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. | |