| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.28 | 21.05 | 6.16 | 13.97 | -18.42 | 79.93 | 38.33 | 242.01 | 0.6686 | 32.3 | 269.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-10 10:58:55 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 | 1.19 | 0.00 | 0.81 | -18.04 | 81.88 | 40.28 | 243.53 | 0.6892 | 508.0 | 427.2 | |
| 3.49 | 4.18 | 2.37 | 2.83 | -17.97 | 81.58 | 39.98 | 243.47 | 0.6855 | 673.5 | 511.1 | |
| 0.00 | 1.11 | 0.00 | 0.75 | -18.04 | 81.19 | 39.59 | 243.20 | 0.6813 | 693.0 | 588.5 | |
| 0.00 | 2.81 | 0.00 | 1.89 | -18.38 | 80.76 | 39.16 | 242.52 | 0.6779 | 559.0 | 597.8 | |
| 0.34 | 2.98 | 0.22 | 1.96 | -17.73 | 79.59 | 38.00 | 242.83 | 0.6614 | 846.0 | 620.3 | |
| 0.00 | 0.94 | 0.00 | 0.61 | -18.85 | 78.82 | 37.22 | 240.83 | 0.6579 | -690.0 | -555.8 | |
| 5.45 | 6.73 | 3.57 | 4.41 | -19.07 | 78.64 | 37.04 | 240.43 | 0.6570 | -773.9 | -556.1 | |
| 0.00 | 1.11 | 0.00 | 0.71 | -18.60 | 77.47 | 35.88 | 240.41 | 0.6410 | -543.0 | -450.4 | |
| 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. | |