SDO HMI 2011-12-01 18:58:56 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 |
| 21.69 | 146.51 | 17.82 | 120.93 | 19.16 | 104.92 | -50.87 | 66.46 | 0.8016 | -694.5 | -227.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-01 18:58:56 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 | 1.37 | 0.00 | 1.15 | 23.48 | 105.38 | -50.41 | 61.13 | 0.8094 | -666.0 | -577.3 | |
| 0.00 | 1.28 | 0.00 | 1.08 | 23.48 | 105.08 | -50.72 | 61.23 | 0.8121 | -602.0 | -538.1 | |
| 0.00 | 0.60 | 0.00 | 0.54 | 26.68 | 102.89 | -52.90 | 58.25 | 0.8402 | -402.0 | -352.7 | |
| 0.00 | 0.51 | 0.00 | 0.43 | 23.06 | 104.94 | -50.85 | 61.77 | 0.8121 | -435.0 | -356.0 | |
| 0.00 | 0.77 | 0.00 | 0.69 | 25.89 | 102.92 | -52.87 | 59.14 | 0.8377 | -498.0 | -403.9 | |
| 21.69 | 137.97 | 17.82 | 113.57 | 18.92 | 104.99 | -50.80 | 66.73 | 0.8003 | -950.4 | -233.4 | |
| 0.00 | 0.94 | 0.00 | 0.80 | 21.04 | 103.71 | -52.08 | 64.54 | 0.8177 | -564.0 | -488.4 | |
| 0.00 | 1.28 | 0.00 | 1.12 | 22.08 | 103.12 | -52.67 | 63.49 | 0.8256 | 669.0 | 504.7 | |
| 0.00 | 0.85 | 0.00 | 0.74 | 20.75 | 103.28 | -52.51 | 65.01 | 0.8209 | 393.0 | 356.7 | |
| 0.00 | 0.94 | 0.00 | 0.81 | 20.85 | 103.08 | -52.72 | 64.96 | 0.8229 | 415.0 | 350.4 | |
| 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. | |