SDO HMI 2014-03-02 18:00:28 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 |
| 2.42 | 14.26 | 1.46 | 8.58 | -11.85 | 74.60 | -34.93 | 100.41 | 0.5716 | 72.4 | 28.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-02 18:00:28 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 | 0.78 | 0.00 | 0.44 | -12.66 | 80.96 | -28.56 | 103.22 | 0.4811 | 524.0 | 449.0 | |
| 0.00 | 0.78 | 0.00 | 0.45 | -14.10 | 77.64 | -31.88 | 105.09 | 0.5326 | 641.0 | 516.1 | |
| 0.78 | 1.81 | 0.46 | 1.08 | -11.45 | 75.27 | -34.25 | 99.77 | 0.5619 | 807.9 | 591.7 | |
| 0.00 | 3.11 | 0.00 | 1.86 | -11.21 | 75.20 | -34.33 | 99.33 | 0.5627 | 866.0 | 660.2 | |
| 0.00 | 1.04 | 0.00 | 0.62 | -11.64 | 74.95 | -34.57 | 100.06 | 0.5666 | 438.0 | 335.8 | |
| 0.00 | 0.95 | 0.00 | 0.57 | -10.86 | 74.17 | -35.35 | 98.62 | 0.5769 | -653.0 | -562.8 | |
| 0.86 | 1.90 | 0.53 | 1.16 | -11.39 | 73.61 | -35.91 | 99.48 | 0.5852 | -852.6 | -720.2 | |
| 0.78 | 2.85 | 0.47 | 1.74 | -11.65 | 73.53 | -35.99 | 99.92 | 0.5865 | -818.7 | -721.2 | |
| 0.00 | 1.04 | 0.00 | 0.66 | -14.58 | 70.06 | -39.46 | 104.20 | 0.6368 | -655.0 | -515.1 | |
| 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. | |