SDO HMI 2014-04-08 01:00:33 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 | 8.03 | 0.00 | 4.06 | -16.78 | 352.29 | 1.27 | 182.49 | 0.1959 | -862.3 | -671.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 01:00:33 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 | 1.85 | 0.00 | 0.94 | -18.06 | 355.86 | 4.84 | 201.18 | 0.2229 | -715.0 | -529.2 | |
| 0.00 | 1.59 | 0.00 | 0.80 | -17.91 | 355.70 | 4.67 | 200.79 | 0.2195 | -971.0 | -798.3 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -23.41 | 353.93 | 2.91 | 188.91 | 0.3019 | -802.0 | -669.1 | |
| 0.00 | 1.32 | 0.00 | 0.66 | -9.23 | 350.21 | -0.81 | 165.52 | 0.0559 | -852.0 | -640.1 | |
| 0.00 | 1.06 | 0.00 | 0.53 | -13.87 | 348.84 | -2.19 | 164.60 | 0.1401 | -989.0 | -760.6 | |
| 0.00 | 1.06 | 0.00 | 0.54 | -17.70 | 345.16 | -5.87 | 154.15 | 0.2243 | -845.0 | -683.8 | |
| 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. | |