SDO HMI 2011-03-04 16:58:59 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 |
| 4.49 | 22.29 | 6.77 | 35.73 | 24.57 | 215.86 | 66.26 | 298.87 | 0.9516 | 11.2 | -128.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-03-04 16:58:59 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 |
| 2.16 | 16.15 | 3.58 | 26.98 | 24.63 | 216.66 | 67.06 | 298.69 | 0.9556 | -478.5 | -209.3 | |
| 2.33 | 3.63 | 3.19 | 4.96 | 23.54 | 212.64 | 63.03 | 298.77 | 0.9337 | 374.4 | 333.2 | |
| 0.00 | 1.99 | 0.00 | 3.02 | 25.56 | 214.47 | 64.86 | 300.25 | 0.9469 | 175.0 | 73.6 | |
| 0.00 | 0.52 | 0.00 | 0.77 | 25.32 | 213.92 | 64.31 | 300.18 | 0.9438 | 442.0 | 471.8 | |
| 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. | |