SDO HMI 2014-03-30 09:00:32 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 |
| 3.42 | 10.88 | 3.55 | 11.24 | -25.48 | 166.73 | 61.34 | 244.53 | 0.8794 | 40.3 | 19.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 09:00:32 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 | 0.88 | 0.00 | 0.95 | -24.68 | 168.48 | 63.09 | 245.61 | 0.8915 | -443.0 | -427.7 | |
| 0.00 | 0.88 | 0.00 | 0.88 | -24.23 | 165.85 | 60.46 | 245.85 | 0.8715 | 108.0 | 206.1 | |
| 0.00 | 1.58 | 0.00 | 1.63 | -25.48 | 166.62 | 61.23 | 244.51 | 0.8786 | -156.0 | 47.1 | |
| 3.42 | 5.96 | 3.55 | 6.19 | -25.79 | 166.82 | 61.43 | 244.19 | 0.8804 | 458.8 | 340.1 | |
| 0.00 | 0.88 | 0.00 | 0.88 | -25.03 | 165.96 | 60.57 | 244.95 | 0.8731 | -414.0 | -399.5 | |
| 0.00 | 0.70 | 0.00 | 0.71 | -25.88 | 165.93 | 60.54 | 243.98 | 0.8738 | -379.0 | -342.6 | |
| 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. | |