SDO HMI 2014-05-31 23:00:39 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 |
| 4.79 | 10.39 | 5.07 | 10.76 | -13.17 | 59.10 | 60.74 | 255.37 | 0.8796 | -337.0 | -240.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-31 23:00:39 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 |
| 4.25 | 6.41 | 4.51 | 6.81 | -13.47 | 59.85 | 61.49 | 255.12 | 0.8861 | -324.7 | -208.6 | |
| 0.00 | 0.27 | 0.00 | 0.28 | -13.06 | 59.42 | 61.06 | 255.52 | 0.8823 | -501.0 | -474.7 | |
| 0.54 | 1.45 | 0.56 | 1.50 | -12.91 | 59.22 | 60.86 | 255.67 | 0.8806 | -613.3 | -504.4 | |
| 0.00 | 2.26 | 0.00 | 2.17 | -12.40 | 56.61 | 58.25 | 255.91 | 0.8583 | -74.0 | -128.8 | |
| 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. | |