SDO HMI 2011-02-13 07:58:57 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 |
| 16.18 | 34.77 | 9.08 | 19.56 | 19.48 | 34.38 | -10.40 | 21.07 | 0.4745 | -389.0 | -218.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-13 07:58:57 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 |
| 13.53 | 20.99 | 7.58 | 11.76 | 19.63 | 35.56 | -9.23 | 18.83 | 0.4697 | -1007.4 | -749.8 | |
| 0.34 | 2.14 | 0.19 | 1.19 | 18.68 | 35.17 | -9.62 | 20.30 | 0.4580 | -908.2 | -571.4 | |
| 0.00 | 1.71 | 0.00 | 0.96 | 19.21 | 35.11 | -9.68 | 20.01 | 0.4660 | -900.0 | -720.2 | |
| 0.00 | 0.69 | 0.00 | 0.39 | 19.53 | 34.07 | -10.72 | 21.69 | 0.4762 | -679.0 | -595.4 | |
| 0.00 | 1.28 | 0.00 | 0.72 | 18.48 | 33.88 | -10.90 | 22.93 | 0.4625 | 450.0 | 331.5 | |
| 2.31 | 3.68 | 1.31 | 2.09 | 19.34 | 31.35 | -13.43 | 26.66 | 0.4905 | 924.7 | 786.6 | |
| 0.00 | 2.48 | 0.00 | 1.42 | 19.88 | 30.85 | -13.93 | 26.98 | 0.5012 | 822.0 | 614.2 | |
| 0.00 | 0.94 | 0.00 | 0.54 | 19.25 | 30.91 | -13.88 | 27.50 | 0.4924 | 694.0 | 527.2 | |
| 0.00 | 0.86 | 0.00 | 0.49 | 19.45 | 30.79 | -13.99 | 27.49 | 0.4959 | 863.0 | 689.5 | |
| 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. | |