SDO HMI 2014-04-25 22:00:35 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 |
| 41.44 | 249.82 | 36.04 | 217.00 | 18.21 | 165.99 | 51.01 | 296.01 | 0.8238 | -616.4 | -245.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 22:00:35 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 |
| 30.15 | 242.07 | 26.22 | 210.67 | 18.05 | 166.12 | 51.14 | 295.78 | 0.8244 | -813.9 | -264.9 | |
| 10.85 | -1.00 | 9.46 | -1.00 | 18.59 | 165.99 | 51.01 | 296.46 | 0.8250 | -747.6 | 999999 | |
| 0.00 | 0.98 | 0.00 | 0.81 | 17.20 | 164.01 | 49.03 | 295.63 | 0.8022 | 292.0 | 271.4 | |
| 0.00 | 1.96 | 0.00 | 1.62 | 19.02 | 163.49 | 48.51 | 297.97 | 0.8040 | 410.0 | 327.8 | |
| 0.00 | 1.07 | 0.00 | 0.87 | 17.81 | 162.94 | 47.95 | 296.80 | 0.7943 | 436.0 | 355.8 | |
| 0.00 | 1.16 | 0.00 | 0.93 | 17.46 | 162.48 | 47.50 | 296.58 | 0.7886 | 398.0 | 319.5 | |
| 0.00 | 1.07 | 0.00 | 0.87 | 18.68 | 162.78 | 47.80 | 297.88 | 0.7962 | 404.0 | 256.2 | |
| 0.44 | 1.51 | 0.36 | 1.23 | 20.40 | 161.98 | 47.00 | 300.25 | 0.7958 | 410.8 | 334.6 | |
| 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. | |