SDO HMI 2014-04-04 19:00:32 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 |
| 46.92 | 184.51 | 25.49 | 100.02 | 17.28 | 30.02 | -3.90 | 9.15 | 0.4085 | -385.6 | -322.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-04 19:00:32 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 |
| 1.76 | 154.29 | 0.95 | 83.51 | 16.90 | 30.94 | -2.98 | 7.19 | 0.3993 | -1233.8 | -426.7 | |
| 20.03 | -1.00 | 10.86 | -1.00 | 17.39 | 30.90 | -3.02 | 7.12 | 0.4072 | -1103.1 | 999999 | |
| 9.49 | -1.00 | 5.13 | -1.00 | 17.13 | 30.75 | -3.17 | 7.57 | 0.4034 | -1228.4 | 999999 | |
| 0.00 | 1.23 | 0.00 | 0.66 | 15.94 | 29.17 | -4.75 | 11.87 | 0.3888 | -970.0 | -818.2 | |
| 15.64 | 27.94 | 8.55 | 15.27 | 17.26 | 25.70 | -8.23 | 18.89 | 0.4239 | 1060.7 | 676.7 | |
| 0.00 | 1.05 | 0.00 | 0.58 | 18.44 | 24.24 | -9.69 | 20.91 | 0.4490 | 755.0 | 615.5 | |
| 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. | |