SDO HMI 2014-08-22 04:00:38 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 |
| 0.00 | 7.02 | 0.00 | 4.26 | 10.37 | 25.63 | 34.92 | 278.92 | 0.5720 | -12.3 | 44.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-22 04:00:38 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 |
| 0.00 | 0.81 | 0.00 | 0.53 | 7.28 | 31.44 | 40.73 | 273.09 | 0.6504 | -473.0 | -376.9 | |
| 0.00 | 0.81 | 0.00 | 0.52 | 7.65 | 30.24 | 39.52 | 273.61 | 0.6342 | -596.0 | -520.7 | |
| 0.00 | 0.72 | 0.00 | 0.46 | 8.30 | 30.07 | 39.36 | 274.63 | 0.6319 | -487.0 | -460.9 | |
| 0.00 | 0.81 | 0.00 | 0.51 | 9.12 | 28.91 | 38.20 | 275.95 | 0.6161 | -424.0 | -497.4 | |
| 0.00 | 1.89 | 0.00 | 1.12 | 9.86 | 24.14 | 33.42 | 277.41 | 0.5494 | 636.0 | 515.7 | |
| 0.00 | 0.99 | 0.00 | 0.57 | 14.78 | 20.35 | 29.64 | 287.59 | 0.5036 | 558.0 | 422.4 | |
| 0.00 | 0.99 | 0.00 | 0.55 | 15.31 | 17.46 | 26.75 | 290.00 | 0.4639 | 700.0 | 550.9 | |
| 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. | |