SDO HMI 2011-08-23 17:59:09 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 |
| 13.38 | 29.56 | 9.87 | 22.09 | 7.96 | 346.94 | -48.75 | 85.60 | 0.7463 | -248.1 | 0.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 17:59:09 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 |
| 9.25 | 11.85 | 6.30 | 8.08 | 7.11 | 351.96 | -43.73 | 87.00 | 0.6891 | -856.9 | -661.7 | |
| 0.00 | 0.81 | 0.00 | 0.55 | 6.99 | 351.55 | -44.14 | 87.16 | 0.6944 | -495.0 | -427.2 | |
| 0.00 | 0.90 | 0.00 | 0.62 | 7.10 | 351.45 | -44.24 | 86.99 | 0.6955 | -649.0 | -546.1 | |
| 0.00 | 1.80 | 0.00 | 1.27 | 6.87 | 349.83 | -45.86 | 87.20 | 0.7156 | -674.0 | -599.5 | |
| 0.00 | 0.54 | 0.00 | 0.39 | 7.58 | 348.49 | -47.20 | 86.13 | 0.7313 | -362.0 | -346.5 | |
| 0.00 | 1.26 | 0.00 | 0.92 | 6.96 | 348.07 | -47.61 | 86.95 | 0.7365 | -662.0 | -509.1 | |
| 0.00 | 2.60 | 0.00 | 2.02 | 9.48 | 344.92 | -50.77 | 83.44 | 0.7713 | 622.0 | 448.4 | |
| 0.00 | 2.25 | 0.00 | 1.78 | 7.88 | 343.79 | -51.89 | 85.46 | 0.7841 | 608.0 | 479.4 | |
| 0.00 | 0.90 | 0.00 | 0.72 | 8.20 | 343.59 | -52.10 | 85.05 | 0.7862 | 360.0 | 354.2 | |
| 4.13 | 6.65 | 3.57 | 5.74 | 9.24 | 340.12 | -55.56 | 83.58 | 0.8213 | 621.3 | 507.5 | |
| 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. | |