SDO HMI 2011-05-31 19:59:10 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 |
| 7.04 | 18.51 | 7.89 | 20.64 | 20.27 | 4.50 | -61.43 | 66.84 | 0.8972 | 70.2 | -14.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-31 19:59:10 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 |
| 1.81 | 5.69 | 1.84 | 5.79 | 19.22 | 7.30 | -58.63 | 67.40 | 0.8752 | -536.6 | -417.9 | |
| 1.35 | 2.71 | 1.45 | 2.89 | 19.24 | 5.62 | -60.30 | 67.74 | 0.8880 | -376.1 | -273.7 | |
| 0.90 | 1.90 | 1.04 | 2.18 | 21.22 | 3.67 | -62.26 | 65.99 | 0.9050 | 477.0 | 469.7 | |
| 0.00 | 1.17 | 0.00 | 1.37 | 21.29 | 3.26 | -62.67 | 65.99 | 0.9079 | 268.0 | 166.0 | |
| 0.00 | 1.26 | 0.00 | 1.50 | 21.26 | 2.77 | -63.15 | 66.12 | 0.9111 | 183.0 | 165.6 | |
| 2.98 | 5.78 | 3.56 | 6.91 | 20.87 | 2.56 | -63.36 | 66.58 | 0.9119 | 359.6 | 256.5 | |
| 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. | |