SDO HMI 2014-12-08 01:00:25 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 |
| 48.44 | 302.55 | 118.89 | 758.67 | -19.73 | 85.12 | 77.59 | 249.82 | 0.9800 | 218.8 | 128.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-08 01:00:25 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 |
| 12.88 | 298.46 | 37.24 | 750.56 | -18.79 | 87.14 | 79.61 | 250.92 | 0.9861 | 72.6 | 123.9 | |
| 8.36 | -1.00 | 20.89 | -1.00 | -19.16 | 85.34 | 77.81 | 250.43 | 0.9808 | 203.1 | 999999 | |
| 4.60 | -1.00 | 11.14 | -1.00 | -19.60 | 85.01 | 77.48 | 249.96 | 0.9799 | 291.3 | 999999 | |
| 22.60 | -1.00 | 49.62 | -1.00 | -20.67 | 83.61 | 76.09 | 248.76 | 0.9754 | 312.1 | 999999 | |
| 0.00 | 4.09 | 0.00 | 8.11 | -21.27 | 81.96 | 74.43 | 248.00 | 0.9694 | 562.0 | 496.0 | |
| 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. | |