SDO HMI 2011-10-19 21:59:01 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 |
| 11.32 | 32.76 | 7.26 | 21.05 | 19.21 | 322.84 | -38.21 | 66.37 | 0.6400 | 722.6 | 610.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-19 21:59:01 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 | 0.61 | 0.00 | 0.37 | 15.18 | 327.48 | -33.57 | 71.08 | 0.5664 | 743.0 | 601.0 | |
| 8.71 | 24.39 | 5.58 | 15.61 | 19.17 | 323.07 | -37.98 | 66.32 | 0.6370 | 839.5 | 668.6 | |
| 0.00 | 0.96 | 0.00 | 0.65 | 24.52 | 321.20 | -39.85 | 59.33 | 0.6801 | 475.0 | 400.8 | |
| 2.61 | -2.00 | 1.68 | -2.00 | 18.88 | 322.99 | -38.06 | 66.78 | 0.6371 | 850.9 | 999999 | |
| 0.00 | 2.09 | 0.00 | 1.34 | 18.56 | 322.75 | -38.30 | 67.36 | 0.6389 | 623.0 | 554.7 | |
| 0.00 | 1.22 | 0.00 | 0.78 | 18.74 | 322.66 | -38.39 | 67.12 | 0.6406 | 536.0 | 459.2 | |
| 0.00 | 1.66 | 0.00 | 1.08 | 19.54 | 322.07 | -38.98 | 66.14 | 0.6505 | 696.0 | 592.9 | |
| 0.00 | 1.13 | 0.00 | 0.77 | 21.78 | 319.85 | -41.20 | 63.73 | 0.6844 | 609.0 | 537.1 | |
| 0.00 | 0.70 | 0.00 | 0.45 | 16.15 | 321.43 | -39.62 | 71.46 | 0.6484 | 508.0 | 425.0 | |
| 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. | |