SDO HMI 2014-03-29 12:00:31 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 | 5.69 | 0.00 | 2.99 | 10.08 | 107.82 | -9.11 | 27.82 | 0.3307 | 744.5 | 587.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-29 12:00:31 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 | 1.05 | 0.00 | 0.54 | 8.98 | 112.28 | -4.65 | 16.58 | 0.2822 | 883.0 | 709.6 | |
| 0.00 | 1.14 | 0.00 | 0.59 | 9.13 | 112.12 | -4.81 | 16.93 | 0.2855 | 735.0 | 520.2 | |
| 0.00 | 2.54 | 0.00 | 1.33 | 8.54 | 105.68 | -11.25 | 36.58 | 0.3253 | 576.0 | 562.6 | |
| 0.00 | 0.96 | 0.00 | 0.53 | 16.15 | 103.88 | -13.05 | 29.40 | 0.4438 | 784.0 | 597.2 | |
| 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. | |