SDO HMI 2014-04-20 01:00:34 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 | 15.96 | 0.00 | 8.21 | -16.16 | 201.07 | 8.49 | 213.44 | 0.2720 | -392.3 | -360.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 01:00:34 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 | 1.33 | 0.00 | 0.69 | -13.37 | 209.30 | 16.72 | 242.54 | 0.3168 | 704.0 | 471.3 | |
| 0.00 | 2.04 | 0.00 | 1.06 | -13.35 | 208.88 | 16.30 | 242.04 | 0.3105 | 708.0 | 579.7 | |
| 0.00 | 2.57 | 0.00 | 1.32 | -12.06 | 206.85 | 14.27 | 243.20 | 0.2712 | -769.0 | -767.2 | |
| 0.00 | 1.77 | 0.00 | 0.91 | -15.63 | 203.42 | 10.83 | 224.83 | 0.2579 | -967.0 | -746.3 | |
| 0.00 | 1.68 | 0.00 | 0.88 | -19.42 | 203.26 | 10.67 | 215.29 | 0.3036 | -784.0 | -653.7 | |
| 0.00 | 0.98 | 0.00 | 0.50 | -16.50 | 202.09 | 9.51 | 218.83 | 0.2537 | -619.0 | -464.9 | |
| 0.00 | 0.71 | 0.00 | 0.37 | -20.21 | 199.74 | 7.15 | 204.25 | 0.2856 | 607.0 | 474.9 | |
| 0.00 | 0.71 | 0.00 | 0.36 | -18.38 | 193.36 | 0.77 | 183.22 | 0.2290 | -758.0 | -593.5 | |
| 0.00 | 1.51 | 0.00 | 0.77 | -18.88 | 193.30 | 0.71 | 182.85 | 0.2374 | -968.0 | -807.9 | |
| 0.00 | 0.98 | 0.00 | 0.49 | -17.01 | 189.64 | -2.95 | 166.48 | 0.2112 | -794.0 | -608.3 | |
| 0.00 | 1.68 | 0.00 | 0.86 | -19.60 | 187.92 | -4.66 | 162.88 | 0.2612 | -675.0 | -511.5 | |
| 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. | |