SDO HMI 2011-04-02 04:59:03 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 |
| 20.81 | 111.15 | 26.92 | 148.51 | -15.43 | 202.74 | 68.85 | 255.80 | 0.9224 | 487.0 | 172.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-02 04:59:03 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 |
| 0.97 | 42.84 | 1.79 | 77.63 | -14.55 | 209.53 | 75.64 | 256.66 | 0.9649 | -200.2 | 42.6 | |
| 6.67 | -1.00 | 11.84 | -1.00 | -14.63 | 208.75 | 74.86 | 256.61 | 0.9613 | 405.7 | 999999 | |
| 0.00 | 3.16 | 0.00 | 5.31 | -14.82 | 207.87 | 73.98 | 256.45 | 0.9571 | 504.0 | 389.1 | |
| 0.00 | 3.34 | 0.00 | 3.41 | -15.28 | 195.58 | 61.69 | 256.11 | 0.8768 | 739.0 | 568.8 | |
| 13.17 | 58.56 | 13.29 | 58.97 | -16.50 | 195.10 | 61.21 | 254.70 | 0.8732 | 621.5 | 272.9 | |
| 0.00 | 3.25 | 0.00 | 3.19 | -16.53 | 194.15 | 60.26 | 254.63 | 0.8653 | 624.0 | 553.5 | |
| 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. | |