SDO HMI 2014-04-21 23:00:35 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 |
| 72.33 | 399.35 | 38.91 | 214.81 | 17.77 | 166.85 | -0.42 | 1.02 | 0.3905 | -740.9 | -353.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 23:00:35 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 |
| 12.69 | 372.11 | 6.84 | 200.09 | 18.03 | 167.66 | 0.39 | 359.06 | 0.3939 | -1073.9 | -416.4 | |
| 11.27 | -1.00 | 6.07 | -1.00 | 18.03 | 167.18 | -0.09 | 0.22 | 0.3939 | -1074.3 | 999999 | |
| 41.09 | -1.00 | 22.06 | -1.00 | 17.64 | 167.15 | -0.12 | 0.30 | 0.3875 | -1340.7 | 999999 | |
| 0.00 | 1.24 | 0.00 | 0.67 | 18.53 | 165.85 | -1.42 | 3.37 | 0.4025 | -671.0 | -433.4 | |
| 0.00 | 1.95 | 0.00 | 1.05 | 17.03 | 163.81 | -3.46 | 8.73 | 0.3820 | 898.0 | 558.7 | |
| 0.00 | 2.13 | 0.00 | 1.15 | 17.59 | 163.67 | -3.60 | 8.84 | 0.3912 | 1003.0 | 797.7 | |
| 0.00 | 1.33 | 0.00 | 0.71 | 17.13 | 163.52 | -3.75 | 9.40 | 0.3843 | 790.0 | 650.5 | |
| 0.00 | 1.15 | 0.00 | 0.63 | 19.21 | 162.07 | -5.20 | 11.77 | 0.4213 | 773.0 | 648.2 | |
| 0.00 | 0.98 | 0.00 | 0.53 | 17.48 | 161.62 | -5.66 | 13.80 | 0.3959 | 753.0 | 658.0 | |
| 0.00 | 1.06 | 0.00 | 0.59 | 20.08 | 161.53 | -5.74 | 12.49 | 0.4365 | 573.0 | 514.3 | |
| 2.13 | 3.73 | 1.15 | 2.02 | 17.98 | 160.42 | -6.85 | 16.19 | 0.4086 | 842.7 | 602.1 | |
| 2.75 | 12.07 | 1.49 | 6.52 | 17.59 | 160.31 | -6.96 | 16.73 | 0.4032 | 1017.7 | 749.0 | |
| 2.40 | -12.00 | 1.30 | -12.00 | 17.43 | 160.16 | -7.12 | 17.20 | 0.4014 | 1005.5 | 999999 | |
| 0.00 | 1.60 | 0.00 | 0.85 | 14.81 | 160.09 | -7.18 | 19.61 | 0.3617 | 777.0 | 626.9 | |
| 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. | |