SDO HMI 2014-10-13 09:00:31 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 | 4.37 | 0.00 | 4.32 | -18.01 | 76.63 | 55.17 | 244.64 | 0.8631 | 199.2 | 136.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-13 09:00:31 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 | 1.31 | 0.00 | 1.49 | -15.21 | 82.63 | 61.16 | 249.89 | 0.9020 | 195.0 | 219.9 | |
| 0.00 | 0.61 | 0.00 | 0.70 | -15.39 | 82.52 | 61.06 | 249.66 | 0.9016 | 459.0 | 402.7 | |
| 0.00 | 0.61 | 0.00 | 0.57 | -19.15 | 74.40 | 52.94 | 242.90 | 0.8488 | 583.0 | 498.4 | |
| 0.00 | 0.61 | 0.00 | 0.53 | -16.95 | 72.20 | 50.74 | 244.51 | 0.8227 | 313.0 | 325.0 | |
| 0.00 | 1.23 | 0.00 | 1.03 | -23.76 | 67.46 | 46.00 | 234.65 | 0.8094 | -554.0 | -464.2 | |
| 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. | |