SDO HMI 2014-04-02 13:00:32 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 |
| 25.99 | 51.71 | 22.50 | 44.43 | -8.22 | 8.42 | -55.20 | 95.54 | 0.8176 | 294.4 | 209.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-02 13:00:32 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 | 2.46 | 0.00 | 1.99 | -8.70 | 10.88 | -52.73 | 96.02 | 0.7933 | 573.0 | 575.6 | |
| 18.88 | 31.52 | 15.52 | 25.91 | -8.52 | 10.21 | -53.41 | 95.81 | 0.8004 | 701.4 | 388.2 | |
| 0.00 | 5.09 | 0.00 | 4.23 | -8.93 | 9.76 | -53.86 | 96.34 | 0.8049 | -36.0 | -1.8 | |
| 0.00 | 0.88 | 0.00 | 0.73 | -5.58 | 9.84 | -53.78 | 92.18 | 0.8057 | 495.0 | 427.4 | |
| 7.11 | 10.18 | 6.98 | 10.01 | -7.33 | 3.45 | -60.17 | 94.74 | 0.8654 | -591.5 | -280.1 | |
| 0.00 | 1.58 | 0.00 | 1.56 | -7.64 | 3.19 | -60.43 | 95.11 | 0.8675 | 11.0 | -32.6 | |
| 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. | |