SDO HMI 2014-07-18 21:00:40 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 |
| 0.00 | 13.79 | 0.00 | 7.27 | -11.16 | 93.14 | 8.97 | 207.01 | 0.3376 | 103.6 | 143.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-18 21:00:40 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 | 1.45 | 0.00 | 0.79 | -12.01 | 102.17 | 18.00 | 226.89 | 0.4159 | 755.0 | 581.3 | |
| 0.00 | 1.45 | 0.00 | 0.79 | -11.59 | 101.98 | 17.81 | 227.34 | 0.4092 | 827.0 | 691.6 | |
| 0.00 | 0.82 | 0.00 | 0.44 | -12.31 | 100.43 | 16.26 | 223.45 | 0.3996 | 741.0 | 636.8 | |
| 0.00 | 3.36 | 0.00 | 1.76 | -8.58 | 97.43 | 13.26 | 224.97 | 0.3224 | 690.0 | 566.9 | |
| 0.00 | 1.18 | 0.00 | 0.61 | -7.78 | 96.34 | 12.17 | 224.33 | 0.3002 | 825.0 | 651.7 | |
| 0.00 | 1.27 | 0.00 | 0.66 | -11.88 | 84.81 | 0.64 | 182.21 | 0.2862 | -645.0 | -488.1 | |
| 0.00 | 1.81 | 0.00 | 0.94 | -13.06 | 84.19 | 0.02 | 180.07 | 0.3058 | -714.0 | -529.5 | |
| 0.00 | 1.54 | 0.00 | 0.81 | -14.34 | 84.09 | -0.07 | 179.78 | 0.3271 | -958.0 | -745.4 | |
| 0.00 | 0.91 | 0.00 | 0.47 | -11.66 | 81.24 | -2.93 | 169.89 | 0.2867 | -589.0 | -456.6 | |
| 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. | |