SDO HMI 2011-03-02 17:58:58 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 | 13.37 | 0.00 | 7.33 | 17.99 | 178.13 | 2.73 | 353.78 | 0.4309 | -464.7 | -325.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-03-02 17:58:58 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 | 2.24 | 0.00 | 1.21 | 16.06 | 180.37 | 4.97 | 348.11 | 0.4053 | 890.0 | 681.4 | |
| 0.00 | 1.29 | 0.00 | 0.70 | 16.32 | 180.22 | 4.82 | 348.58 | 0.4088 | 688.0 | 581.6 | |
| 0.00 | 1.64 | 0.00 | 0.90 | 18.13 | 178.17 | 2.77 | 353.89 | 0.4324 | -905.0 | -730.4 | |
| 0.00 | 0.95 | 0.00 | 0.52 | 18.29 | 178.14 | 2.74 | 353.99 | 0.4349 | -863.0 | -727.0 | |
| 0.00 | 2.33 | 0.00 | 1.28 | 18.39 | 177.98 | 2.58 | 354.35 | 0.4362 | -814.0 | -610.4 | |
| 0.00 | 1.12 | 0.00 | 0.62 | 18.79 | 177.83 | 2.43 | 354.77 | 0.4421 | -799.0 | -647.5 | |
| 0.00 | 1.21 | 0.00 | 0.67 | 18.75 | 177.52 | 2.12 | 355.43 | 0.4412 | -886.0 | -741.9 | |
| 0.00 | 1.38 | 0.00 | 0.76 | 19.05 | 176.08 | 0.67 | 358.56 | 0.4446 | -715.0 | -597.8 | |
| 0.00 | 1.21 | 0.00 | 0.67 | 19.34 | 175.35 | -0.05 | 0.10 | 0.4492 | -778.0 | -681.6 | |
| 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. | |