SDO HMI 2014-10-28 07:00:29 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 |
| 16.32 | 51.39 | 8.91 | 28.28 | -3.47 | 160.32 | -24.40 | 108.28 | 0.4353 | 755.4 | 409.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-28 07:00:29 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 |
| 16.32 | 47.57 | 8.91 | 25.98 | -3.35 | 161.09 | -23.63 | 108.51 | 0.4238 | 1171.5 | 471.5 | |
| 0.00 | 1.22 | 0.00 | 0.67 | -2.38 | 159.31 | -25.41 | 105.17 | 0.4461 | 820.0 | 676.0 | |
| 0.00 | 0.69 | 0.00 | 0.43 | -6.01 | 148.90 | -35.82 | 106.40 | 0.6089 | -516.0 | -419.5 | |
| 0.00 | 1.48 | 0.00 | 0.92 | -5.82 | 148.62 | -36.10 | 105.96 | 0.6119 | -432.0 | -270.5 | |
| 0.00 | 0.43 | 0.00 | 0.28 | -5.70 | 147.28 | -37.44 | 105.21 | 0.6292 | -558.0 | -492.2 | |
| 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. | |