SDO HMI 2014-09-23 13:00:34 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 | 10.96 | 0.00 | 5.92 | -14.82 | 286.10 | 2.92 | 187.08 | 0.3894 | 788.2 | 626.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 13:00:34 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 | 1.50 | 0.00 | 0.81 | -10.17 | 299.17 | 15.99 | 223.01 | 0.3992 | 910.0 | 672.6 | |
| 0.00 | 1.59 | 0.00 | 0.87 | -16.25 | 290.09 | 6.92 | 196.36 | 0.4123 | 800.0 | 622.9 | |
| 0.00 | 1.42 | 0.00 | 0.80 | -21.52 | 286.64 | 3.47 | 186.72 | 0.4827 | 530.0 | 530.6 | |
| 0.00 | 1.15 | 0.00 | 0.61 | -13.20 | 282.38 | -0.79 | 177.77 | 0.3472 | 805.0 | 678.3 | |
| 0.00 | 1.06 | 0.00 | 0.61 | -22.78 | 282.29 | -0.88 | 178.37 | 0.4990 | 750.0 | 590.7 | |
| 0.00 | 0.97 | 0.00 | 0.51 | -11.45 | 282.27 | -0.91 | 177.20 | 0.3183 | 912.0 | 672.2 | |
| 0.00 | 1.24 | 0.00 | 0.64 | -10.34 | 282.24 | -0.93 | 176.93 | 0.2999 | 829.0 | 632.6 | |
| 0.00 | 2.03 | 0.00 | 1.07 | -12.82 | 280.97 | -2.21 | 173.68 | 0.3427 | 770.0 | 631.8 | |
| 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. | |