| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 24.23 | 128.97 | 61.83 | 332.01 | -1.49 | 146.96 | -78.89 | 90.13 | 0.9806 | -8.4 | 28.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-21 22:00:27 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 |
| 6.27 | 61.95 | 12.37 | 123.04 | -2.36 | 150.26 | -75.59 | 90.61 | 0.9689 | -612.2 | -264.4 | |
| 4.47 | -1.00 | 9.18 | -1.00 | -2.55 | 149.60 | -76.25 | 90.88 | 0.9716 | -264.3 | 999999 | |
| 1.03 | 9.71 | 2.25 | 21.61 | -2.16 | 148.89 | -76.97 | 90.57 | 0.9746 | -170.6 | 97.5 | |
| 0.00 | 0.69 | 0.00 | 1.51 | -1.63 | 148.69 | -77.16 | 90.05 | 0.9756 | 91.0 | 61.2 | |
| 4.38 | 11.34 | 9.89 | 25.82 | -2.63 | 148.24 | -77.61 | 91.12 | 0.9769 | -134.6 | 73.5 | |
| 8.08 | 45.28 | 28.14 | 160.03 | -0.48 | 144.15 | -81.70 | 89.45 | 0.9902 | 394.3 | 237.3 | |
| 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. | |