SDO HMI 2014-04-08 20:00:33 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 |
| 1.41 | 27.66 | 0.81 | 15.76 | -8.03 | 10.42 | 29.83 | 264.44 | 0.4971 | 253.6 | 349.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 20:00:33 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 | 1.14 | 0.00 | 0.66 | -8.62 | 12.14 | 31.55 | 263.42 | 0.5228 | 441.0 | 423.3 | |
| 0.00 | 2.47 | 0.00 | 1.43 | -8.85 | 11.84 | 31.25 | 262.95 | 0.5186 | 686.0 | 596.6 | |
| 0.00 | 2.64 | 0.00 | 1.52 | -5.19 | 11.53 | 30.95 | 270.06 | 0.5142 | 728.0 | 649.7 | |
| 0.00 | 1.41 | 0.00 | 0.81 | -4.99 | 11.45 | 30.87 | 270.47 | 0.5132 | 802.0 | 666.1 | |
| 1.41 | 5.02 | 0.81 | 2.89 | -8.20 | 11.56 | 30.98 | 264.19 | 0.5142 | 939.8 | 726.2 | |
| 0.00 | 2.38 | 0.00 | 1.37 | -8.50 | 11.52 | 30.94 | 263.60 | 0.5137 | 806.0 | 736.7 | |
| 0.00 | 3.79 | 0.00 | 2.17 | -8.83 | 11.05 | 30.47 | 262.91 | 0.5070 | 646.0 | 534.7 | |
| 0.00 | 1.23 | 0.00 | 0.71 | -11.86 | 10.84 | 30.26 | 256.91 | 0.5083 | -699.0 | -506.1 | |
| 0.00 | 2.47 | 0.00 | 1.39 | -8.00 | 9.62 | 29.04 | 264.47 | 0.4849 | 687.0 | 558.6 | |
| 0.00 | 0.44 | 0.00 | 0.25 | -10.23 | 9.47 | 28.88 | 259.83 | 0.4849 | 656.0 | 574.0 | |
| 0.00 | 1.23 | 0.00 | 0.68 | -7.57 | 6.55 | 25.96 | 265.19 | 0.4373 | -786.0 | -708.9 | |
| 0.00 | 2.47 | 0.00 | 1.35 | -7.59 | 6.25 | 25.66 | 265.14 | 0.4326 | -838.0 | -706.4 | |
| 0.00 | 0.97 | 0.00 | 0.53 | -8.16 | 5.48 | 24.89 | 263.71 | 0.4210 | -641.0 | -468.5 | |
| 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. | |