SDO HMI 2011-10-13 19:59:02 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 |
| 77.26 | 465.97 | 50.65 | 305.67 | 23.17 | 119.88 | 38.58 | 298.89 | 0.6572 | -1221.7 | -391.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-13 19:59:02 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 | 1.22 | 0.00 | 0.82 | 22.26 | 121.65 | 40.36 | 296.83 | 0.6739 | 393.0 | 287.6 | |
| 0.79 | 460.56 | 0.52 | 302.19 | 22.43 | 121.03 | 39.74 | 297.31 | 0.6674 | -347.3 | -400.0 | |
| 76.47 | -2.00 | 50.13 | -2.00 | 23.16 | 119.90 | 38.60 | 298.86 | 0.6573 | -1332.7 | 999999 | |
| 0.00 | 0.96 | 0.00 | 0.63 | 25.59 | 119.27 | 37.97 | 302.63 | 0.6612 | -430.0 | -303.1 | |
| 0.00 | 0.87 | 0.00 | 0.57 | 26.50 | 118.60 | 37.30 | 304.26 | 0.6585 | -565.0 | -419.6 | |
| 0.00 | 2.36 | 0.00 | 1.46 | 25.74 | 113.94 | 32.64 | 305.97 | 0.6025 | 826.0 | 670.7 | |
| 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. | |