SDO HMI 2014-08-27 06:00:37 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 |
| 1.44 | 21.73 | 4.40 | 67.04 | -16.46 | 205.47 | -78.08 | 108.05 | 0.9876 | 181.2 | 50.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-27 06:00:37 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 | 3.95 | 0.00 | 11.40 | -17.08 | 206.33 | -77.22 | 108.81 | 0.9856 | 415.0 | 324.6 | |
| 0.00 | 3.41 | 0.00 | 10.37 | -17.47 | 205.77 | -77.78 | 109.11 | 0.9873 | -31.0 | 6.4 | |
| 1.44 | 8.17 | 4.40 | 25.43 | -16.74 | 205.46 | -78.09 | 108.32 | 0.9877 | 268.9 | 14.9 | |
| 0.00 | 0.72 | 0.00 | 2.27 | -16.48 | 205.21 | -78.34 | 108.01 | 0.9883 | 106.0 | 87.2 | |
| 0.00 | 1.26 | 0.00 | 3.62 | -15.56 | 205.86 | -77.69 | 107.21 | 0.9861 | 134.0 | 130.4 | |
| 0.00 | 4.22 | 0.00 | 13.95 | -14.93 | 204.48 | -79.07 | 106.35 | 0.9894 | -104.0 | -113.7 | |
| 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. | |