SDO HMI 2014-02-24 21:00:27 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 |
| 1.81 | 7.82 | 2.06 | 8.85 | 4.79 | 123.92 | -62.98 | 81.07 | 0.9005 | -363.3 | -283.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-24 21:00:27 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 | 0.77 | 0.00 | 0.81 | 9.32 | 127.17 | -59.73 | 75.36 | 0.8828 | -330.0 | -323.4 | |
| 0.00 | 0.77 | 0.00 | 0.83 | 6.75 | 125.85 | -61.04 | 78.52 | 0.8886 | -275.0 | -236.6 | |
| 1.29 | 3.27 | 1.47 | 3.75 | 3.94 | 123.44 | -63.45 | 82.11 | 0.9028 | -501.4 | -351.7 | |
| 0.52 | 3.01 | 0.59 | 3.46 | 4.18 | 123.21 | -63.69 | 81.90 | 0.9049 | -225.3 | -231.6 | |
| 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. | |