SDO HMI 2014-04-22 21:00:35 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 | 7.28 | 0.00 | 4.23 | -19.47 | 126.43 | -28.74 | 119.86 | 0.5248 | 739.8 | 591.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-22 21:00:35 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 | 2.22 | 0.00 | 1.28 | -19.14 | 126.79 | -28.38 | 119.55 | 0.5182 | 580.0 | 542.2 | |
| 0.00 | 1.15 | 0.00 | 0.67 | -18.70 | 126.62 | -28.55 | 118.64 | 0.5178 | 693.0 | 597.2 | |
| 0.00 | 1.51 | 0.00 | 0.88 | -19.56 | 126.35 | -28.82 | 119.97 | 0.5265 | 788.0 | 557.2 | |
| 0.00 | 1.42 | 0.00 | 0.83 | -19.87 | 126.17 | -29.00 | 120.38 | 0.5305 | 739.0 | 578.2 | |
| 0.00 | 0.98 | 0.00 | 0.57 | -20.39 | 125.92 | -29.25 | 121.09 | 0.5369 | 899.0 | 768.8 | |
| 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. | |