SDO HMI 2014-05-20 16:00:38 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 |
| 4.14 | 16.37 | 2.52 | 9.85 | 8.86 | 180.60 | 32.81 | 288.93 | 0.5681 | -22.7 | -207.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 16:00:38 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 |
| 1.26 | 11.06 | 0.77 | 6.74 | 8.96 | 181.71 | 33.93 | 288.54 | 0.5837 | -901.4 | -696.8 | |
| 2.88 | -1.00 | 1.75 | -1.00 | 9.21 | 181.56 | 33.77 | 289.02 | 0.5826 | -1014.4 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.53 | 6.76 | 179.33 | 31.54 | 285.89 | 0.5422 | 624.0 | 495.4 | |
| 0.00 | 2.70 | 0.00 | 1.58 | 8.34 | 178.35 | 30.56 | 289.22 | 0.5349 | 635.0 | 405.4 | |
| 0.00 | 0.27 | 0.00 | 0.16 | 11.54 | 178.36 | 30.58 | 294.77 | 0.5510 | 467.0 | 502.3 | |
| 0.00 | 1.44 | 0.00 | 0.84 | 8.49 | 178.00 | 30.22 | 289.68 | 0.5307 | 595.0 | 519.1 | |
| 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. | |