SDO HMI 2014-01-12 04:00:24 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 | 11.06 | 0.00 | 5.79 | -8.06 | 24.21 | -18.21 | 103.87 | 0.3223 | 533.7 | 507.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-12 04:00:24 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 | 1.11 | 0.00 | 0.57 | -13.37 | 30.38 | -12.04 | 128.26 | 0.2596 | 794.0 | 632.8 | |
| 0.00 | 0.60 | 0.00 | 0.30 | -13.10 | 30.27 | -12.15 | 127.16 | 0.2584 | 706.0 | 483.9 | |
| 0.00 | 3.74 | 0.00 | 1.95 | -7.32 | 24.35 | -18.07 | 100.49 | 0.3144 | 849.0 | 600.0 | |
| 0.00 | 1.87 | 0.00 | 0.98 | -6.98 | 23.70 | -18.72 | 99.15 | 0.3241 | 876.0 | 715.5 | |
| 0.00 | 3.23 | 0.00 | 1.69 | -7.18 | 23.54 | -18.88 | 99.70 | 0.3272 | 649.0 | 447.4 | |
| 0.00 | 0.51 | 0.00 | 0.30 | -6.27 | 10.99 | -31.43 | 95.06 | 0.5225 | -672.0 | -661.7 | |
| 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. | |