SDO HMI 2014-09-30 20:00:33 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 |
| 21.75 | 109.40 | 16.30 | 82.23 | -9.93 | 140.90 | -46.04 | 109.52 | 0.7545 | 649.5 | 265.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-30 20:00:33 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 | 1.06 | 0.00 | 0.80 | -13.98 | 141.88 | -45.06 | 115.01 | 0.7602 | 588.0 | 469.6 | |
| 0.00 | 1.50 | 0.00 | 1.08 | -7.25 | 142.24 | -44.69 | 106.61 | 0.7303 | 62.0 | 136.0 | |
| 21.75 | 101.46 | 16.30 | 75.98 | -9.74 | 141.04 | -45.90 | 109.35 | 0.7524 | 928.4 | 304.6 | |
| 0.00 | 1.32 | 0.00 | 1.02 | -11.71 | 139.88 | -47.05 | 111.34 | 0.7718 | 437.0 | 372.2 | |
| 0.00 | 1.59 | 0.00 | 1.30 | -14.44 | 138.15 | -48.78 | 113.88 | 0.7989 | -546.0 | -479.3 | |
| 0.00 | 0.97 | 0.00 | 0.79 | -13.43 | 138.02 | -48.92 | 112.63 | 0.7966 | -611.0 | -497.3 | |
| 0.00 | 1.50 | 0.00 | 1.26 | -12.51 | 136.35 | -50.58 | 110.89 | 0.8095 | -580.0 | -475.1 | |
| 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. | |