SDO HMI 2014-08-04 08:00:39 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 | 6.70 | 0.00 | 3.45 | 6.47 | 210.33 | -16.15 | 87.06 | 0.2791 | -55.7 | -157.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 08:00:39 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 | 1.45 | 0.00 | 0.73 | 8.39 | 214.69 | -11.78 | 77.78 | 0.2077 | -824.0 | -672.4 | |
| 0.00 | 1.27 | 0.00 | 0.64 | 7.24 | 213.75 | -12.73 | 83.69 | 0.2209 | -752.0 | -640.2 | |
| 0.00 | 1.36 | 0.00 | 0.69 | 3.15 | 212.86 | -13.62 | 101.29 | 0.2408 | -863.0 | -691.0 | |
| 0.00 | 1.18 | 0.00 | 0.61 | 7.91 | 208.05 | -18.42 | 82.97 | 0.3168 | 866.0 | 703.6 | |
| 0.00 | 0.63 | 0.00 | 0.34 | 6.23 | 204.27 | -22.21 | 88.23 | 0.3775 | 459.0 | 382.0 | |
| 0.00 | 0.81 | 0.00 | 0.44 | 5.56 | 202.00 | -24.48 | 89.78 | 0.4142 | 780.0 | 627.7 | |
| 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. | |