SDO HMI 2014-03-30 00:00:31 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.61 | 10.61 | 0.32 | 5.54 | -24.31 | 116.38 | 6.06 | 197.58 | 0.3201 | -19.1 | 101.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 00:00:31 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 | 0.83 | -24.37 | 117.71 | 7.39 | 201.01 | 0.3281 | 699.0 | 525.6 | |
| 0.00 | 1.23 | 0.00 | 0.64 | -23.22 | 116.63 | 6.31 | 199.47 | 0.3042 | -783.0 | -673.5 | |
| 0.61 | 4.56 | 0.32 | 2.38 | -24.48 | 116.49 | 6.17 | 197.70 | 0.3231 | 796.3 | 506.5 | |
| 0.00 | 1.05 | 0.00 | 0.55 | -24.86 | 115.94 | 5.62 | 195.87 | 0.3265 | 541.0 | 367.1 | |
| 0.00 | 1.14 | 0.00 | 0.59 | -24.02 | 115.51 | 5.19 | 195.47 | 0.3112 | -715.0 | -509.2 | |
| 0.00 | 1.05 | 0.00 | 0.55 | -24.49 | 115.00 | 4.68 | 193.63 | 0.3167 | -914.0 | -767.0 | |
| 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. | |