SDO HMI 2014-04-20 17:00:34 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 |
| 83.34 | 437.34 | 47.15 | 246.61 | 17.92 | 166.94 | -16.86 | 35.27 | 0.4789 | -553.4 | -297.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 17:00:34 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 |
| 22.61 | 391.87 | 12.69 | 219.92 | 18.11 | 168.02 | -15.78 | 33.42 | 0.4714 | -1215.1 | -395.0 | |
| 15.43 | -1.00 | 8.64 | -1.00 | 17.75 | 167.89 | -15.92 | 34.08 | 0.4680 | -1516.7 | 999999 | |
| 1.33 | -1.00 | 0.75 | -1.00 | 18.19 | 167.45 | -16.35 | 34.25 | 0.4772 | -626.8 | 999999 | |
| 25.53 | -1.00 | 14.33 | -1.00 | 17.77 | 167.39 | -16.41 | 34.87 | 0.4725 | -1248.5 | 999999 | |
| 4.34 | -1.00 | 2.45 | -1.00 | 17.78 | 166.86 | -16.94 | 35.70 | 0.4774 | -879.5 | 999999 | |
| 0.27 | -1.00 | 0.15 | -1.00 | 17.66 | 166.74 | -17.06 | 36.06 | 0.4769 | -1003.0 | 999999 | |
| 0.00 | 1.51 | 0.00 | 0.86 | 17.55 | 163.92 | -19.88 | 40.41 | 0.5022 | 857.0 | 703.4 | |
| 0.00 | 0.44 | 0.00 | 0.25 | 17.95 | 163.64 | -20.17 | 40.26 | 0.5095 | 558.0 | 660.6 | |
| 0.00 | 1.06 | 0.00 | 0.61 | 17.44 | 163.36 | -20.44 | 41.34 | 0.5065 | 832.0 | 653.2 | |
| 0.00 | 0.89 | 0.00 | 0.52 | 20.09 | 162.75 | -21.06 | 38.72 | 0.5416 | 730.0 | 661.1 | |
| 0.00 | 1.24 | 0.00 | 0.73 | 19.70 | 162.53 | -21.28 | 39.49 | 0.5393 | 404.0 | 397.9 | |
| 0.00 | 1.15 | 0.00 | 0.68 | 19.77 | 162.38 | -21.42 | 39.59 | 0.5415 | 610.0 | 464.2 | |
| 0.00 | 1.77 | 0.00 | 1.02 | 17.27 | 162.67 | -21.13 | 42.50 | 0.5116 | 841.0 | 675.2 | |
| 0.00 | 1.24 | 0.00 | 0.73 | 19.22 | 161.94 | -21.86 | 40.84 | 0.5397 | 725.0 | 574.8 | |
| 0.00 | 1.95 | 0.00 | 1.14 | 18.76 | 161.97 | -21.83 | 41.40 | 0.5345 | 939.0 | 770.2 | |
| 0.00 | 3.99 | 0.00 | 2.33 | 18.47 | 161.97 | -21.83 | 41.79 | 0.5313 | 906.0 | 782.2 | |
| 0.00 | 1.33 | 0.00 | 0.77 | 16.97 | 161.04 | -22.76 | 45.01 | 0.5253 | 727.0 | 539.5 | |
| 4.79 | 27.13 | 2.82 | 15.96 | 18.09 | 160.55 | -23.25 | 44.06 | 0.5418 | 891.4 | 654.5 | |
| 9.04 | -18.00 | 5.32 | -18.00 | 17.81 | 160.38 | -23.42 | 44.65 | 0.5406 | 1047.8 | 999999 | |
| 0.00 | 1.77 | 0.00 | 1.09 | 21.33 | 158.26 | -25.54 | 42.52 | 0.5964 | 691.0 | 548.5 | |
| 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. | |