SDO HMI 2014-04-01 00:00:32 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 |
| 4.11 | 17.10 | 2.54 | 10.44 | -23.95 | 116.45 | 32.51 | 237.28 | 0.5859 | -50.8 | -86.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 00:00:32 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 |
| 2.89 | 6.40 | 1.79 | 3.96 | -23.59 | 117.88 | 33.94 | 238.75 | 0.6008 | 742.6 | 583.5 | |
| 0.00 | 0.53 | 0.00 | 0.32 | -24.14 | 117.02 | 33.08 | 237.37 | 0.5936 | 595.0 | 526.0 | |
| 0.61 | 1.84 | 0.38 | 1.13 | -23.74 | 116.86 | 32.92 | 237.90 | 0.5895 | 713.6 | 577.6 | |
| 0.00 | 0.96 | 0.00 | 0.59 | -23.47 | 116.55 | 32.62 | 238.13 | 0.5844 | -613.0 | -482.8 | |
| 0.00 | 0.88 | 0.00 | 0.53 | -24.10 | 115.60 | 31.67 | 236.54 | 0.5766 | -654.0 | -453.4 | |
| 0.00 | 3.60 | 0.00 | 2.17 | -24.40 | 115.26 | 31.32 | 235.83 | 0.5744 | -653.0 | -563.0 | |
| 0.61 | 1.84 | 0.37 | 1.11 | -24.39 | 114.87 | 30.94 | 235.57 | 0.5698 | -637.0 | -612.8 | |
| 0.00 | 1.05 | 0.00 | 0.63 | -24.48 | 113.90 | 29.97 | 234.74 | 0.5589 | -601.0 | -567.9 | |
| 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. | |