SDO HMI 2011-04-26 01:59:06 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 |
| 1.87 | 15.21 | 0.99 | 8.01 | 15.33 | 177.79 | -0.88 | 2.42 | 0.3448 | 467.3 | -264.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-26 01:59:06 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 | 8.27 | 0.00 | 4.35 | 15.00 | 178.75 | 0.08 | 359.78 | 0.3385 | -1084.0 | -858.5 | |
| 0.00 | 0.89 | 0.00 | 0.47 | 15.71 | 177.09 | -1.58 | 4.36 | 0.3512 | 807.0 | 618.0 | |
| 0.00 | 1.07 | 0.00 | 0.56 | 15.48 | 177.09 | -1.58 | 4.41 | 0.3475 | 805.0 | 594.6 | |
| 1.51 | 3.20 | 0.80 | 1.69 | 15.71 | 176.87 | -1.80 | 4.97 | 0.3515 | 936.6 | 785.7 | |
| 0.36 | 1.78 | 0.19 | 0.94 | 15.90 | 175.77 | -2.90 | 7.88 | 0.3567 | 886.2 | 725.9 | |
| 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. | |