SDO HMI 2011-03-04 11:58:59 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 | 8.30 | 0.00 | 4.86 | -23.90 | 181.16 | 28.80 | 235.56 | 0.5361 | -108.0 | -192.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-03-04 11:58:59 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 | 1.04 | 0.00 | 0.63 | -22.77 | 185.69 | 33.33 | 240.48 | 0.5845 | 611.0 | 457.9 | |
| 0.00 | 1.30 | 0.00 | 0.77 | -23.85 | 182.44 | 30.08 | 236.67 | 0.5507 | 732.0 | 545.7 | |
| 0.00 | 1.38 | 0.00 | 0.81 | -23.76 | 180.77 | 28.41 | 235.59 | 0.5300 | -552.0 | -456.2 | |
| 0.00 | 2.07 | 0.00 | 1.20 | -23.40 | 180.54 | 28.18 | 236.03 | 0.5247 | -655.0 | -591.5 | |
| 0.00 | 1.04 | 0.00 | 0.60 | -23.87 | 179.88 | 27.52 | 234.69 | 0.5199 | -157.0 | -242.7 | |
| 0.00 | 1.47 | 0.00 | 0.85 | -25.62 | 178.82 | 26.46 | 230.83 | 0.5203 | -627.0 | -488.4 | |
| 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. | |