SDO HMI 2014-08-20 12:00:38 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 |
| 28.25 | 200.22 | 14.72 | 103.99 | 16.14 | 27.52 | 14.76 | 304.79 | 0.2984 | -549.7 | -278.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-20 12:00:38 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 |
| 28.25 | 166.65 | 14.72 | 86.85 | 15.96 | 28.61 | 15.85 | 301.74 | 0.3102 | -1314.8 | -387.0 | |
| 0.00 | 1.17 | 0.00 | 0.61 | 18.06 | 27.51 | 14.75 | 309.28 | 0.3141 | -742.0 | -661.8 | |
| 0.00 | 1.53 | 0.00 | 0.79 | 16.82 | 25.61 | 12.85 | 309.54 | 0.2773 | -1094.0 | -948.2 | |
| 0.00 | 1.08 | 0.00 | 0.56 | 16.95 | 25.42 | 12.66 | 310.30 | 0.2762 | -827.0 | -579.6 | |
| 0.00 | 1.08 | 0.00 | 0.56 | 16.86 | 25.22 | 12.46 | 310.48 | 0.2728 | -979.0 | -807.8 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 17.05 | 25.07 | 12.31 | 311.35 | 0.2728 | -782.0 | -695.9 | |
| 0.00 | 2.43 | 0.00 | 1.25 | 17.28 | 24.31 | 11.55 | 313.78 | 0.2660 | -812.0 | -733.8 | |
| 0.00 | 1.17 | 0.00 | 0.60 | 16.89 | 24.18 | 11.43 | 312.92 | 0.2601 | -901.0 | -740.9 | |
| 0.00 | 1.53 | 0.00 | 0.79 | 17.26 | 24.01 | 11.26 | 314.42 | 0.2622 | -895.0 | -763.5 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 17.12 | 23.49 | 10.73 | 315.33 | 0.2543 | -961.0 | -817.1 | |
| 0.00 | 1.17 | 0.00 | 0.60 | 18.08 | 21.96 | 9.20 | 322.19 | 0.2491 | 735.0 | 644.5 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 16.91 | 21.64 | 8.88 | 319.95 | 0.2307 | 928.0 | 787.1 | |
| 0.00 | 1.53 | 0.00 | 0.78 | 17.90 | 21.53 | 8.77 | 323.02 | 0.2424 | 890.0 | 745.1 | |
| 0.00 | 1.71 | 0.00 | 0.87 | 18.18 | 21.45 | 8.69 | 323.99 | 0.2453 | 981.0 | 806.4 | |
| 0.00 | 2.79 | 0.00 | 1.42 | 16.49 | 21.08 | 8.32 | 320.52 | 0.2192 | 756.0 | 676.1 | |
| 0.00 | 2.25 | 0.00 | 1.14 | 17.33 | 20.54 | 7.78 | 324.73 | 0.2248 | 911.0 | 750.3 | |
| 0.00 | 2.97 | 0.00 | 1.50 | 16.26 | 19.79 | 7.04 | 324.40 | 0.2029 | 965.0 | 808.0 | |
| 0.00 | 3.78 | 0.00 | 1.91 | 16.05 | 19.75 | 7.00 | 323.90 | 0.1996 | 1136.0 | 860.9 | |
| 0.00 | 1.62 | 0.00 | 0.83 | 19.32 | 19.76 | 7.00 | 332.04 | 0.2464 | 644.0 | 525.6 | |
| 0.00 | 2.25 | 0.00 | 1.13 | 16.30 | 17.13 | 4.37 | 336.00 | 0.1806 | 863.0 | 656.1 | |
| 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. | |