SDO HMI 2014-05-18 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 |
| 0.00 | 9.36 | 0.00 | 5.13 | -20.56 | 160.37 | -16.08 | 138.75 | 0.4106 | -756.1 | -600.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 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 |
| 0.00 | 0.54 | 0.00 | 0.29 | -26.27 | 170.97 | -5.48 | 168.11 | 0.4174 | -804.0 | -619.2 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -10.43 | 164.90 | -11.55 | 125.88 | 0.2441 | -870.0 | -722.5 | |
| 0.00 | 1.44 | 0.00 | 0.74 | -10.91 | 164.25 | -12.20 | 126.02 | 0.2577 | -890.0 | -641.2 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -21.41 | 159.95 | -16.50 | 141.23 | 0.4240 | -686.0 | -542.7 | |
| 0.00 | 1.53 | 0.00 | 0.83 | -19.59 | 160.02 | -16.43 | 138.30 | 0.4022 | -983.0 | -782.2 | |
| 0.00 | 1.17 | 0.00 | 0.64 | -20.51 | 159.31 | -17.14 | 138.72 | 0.4201 | -498.0 | -414.8 | |
| 0.00 | 1.08 | 0.00 | 0.66 | -32.62 | 155.87 | -20.57 | 149.74 | 0.5895 | -708.0 | -546.1 | |
| 0.00 | 1.35 | 0.00 | 0.79 | -26.80 | 154.11 | -22.34 | 140.91 | 0.5401 | -610.0 | -489.9 | |
| 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. | |