SDO HMI 2014-12-04 18:00:25 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 |
| 0.00 | 10.82 | 0.00 | 6.74 | 14.94 | 16.71 | -34.22 | 65.18 | 0.5986 | -508.8 | -401.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 18:00:25 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 |
| 0.00 | 0.85 | 0.00 | 0.49 | 15.32 | 24.12 | -26.80 | 59.37 | 0.5075 | -653.0 | -574.1 | |
| 0.00 | 1.96 | 0.00 | 1.14 | 13.79 | 22.22 | -28.70 | 63.57 | 0.5229 | -795.0 | -523.7 | |
| 0.00 | 1.02 | 0.00 | 0.59 | 8.14 | 20.41 | -30.51 | 74.98 | 0.5225 | -755.0 | -643.7 | |
| 0.00 | 1.02 | 0.00 | 0.62 | 14.82 | 19.10 | -31.82 | 63.93 | 0.5697 | -697.0 | -559.6 | |
| 0.00 | 0.77 | 0.00 | 0.50 | 22.00 | 16.23 | -34.70 | 55.06 | 0.6461 | -86.0 | -120.7 | |
| 0.00 | 1.02 | 0.00 | 0.63 | 15.46 | 16.84 | -34.09 | 64.27 | 0.6019 | -676.0 | -537.0 | |
| 0.00 | 1.19 | 0.00 | 0.72 | 9.50 | 17.35 | -33.57 | 73.78 | 0.5703 | -735.0 | -589.2 | |
| 0.00 | 1.54 | 0.00 | 0.99 | 16.96 | 13.99 | -36.94 | 63.57 | 0.6442 | -472.0 | -294.7 | |
| 0.00 | 0.68 | 0.00 | 0.44 | 12.40 | 12.20 | -38.73 | 71.13 | 0.6481 | -524.0 | -390.4 | |
| 0.00 | 0.77 | 0.00 | 0.62 | 22.05 | 1.82 | -49.10 | 62.12 | 0.7949 | 305.0 | 298.0 | |
| 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. | |