SDO HMI 2014-04-21 11:00:35 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 |
| 0.00 | 20.76 | 0.00 | 10.91 | -20.83 | 164.09 | -9.81 | 149.01 | 0.3259 | -792.8 | -645.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 11:00:35 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 |
| 0.00 | 0.98 | 0.00 | 0.52 | -27.48 | 171.40 | -2.50 | 174.20 | 0.3848 | -725.0 | -552.1 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -19.00 | 170.73 | -3.16 | 167.77 | 0.2474 | -837.0 | -718.8 | |
| 0.00 | 1.42 | 0.00 | 0.72 | -18.25 | 170.46 | -3.43 | 166.00 | 0.2361 | -899.0 | -600.6 | |
| 0.00 | 0.89 | 0.00 | 0.47 | -25.55 | 168.80 | -5.10 | 167.10 | 0.3607 | -819.0 | -648.3 | |
| 0.00 | 0.80 | 0.00 | 0.40 | -10.57 | 168.53 | -5.37 | 136.26 | 0.1336 | -802.0 | -658.3 | |
| 0.00 | 1.15 | 0.00 | 0.63 | -28.33 | 167.18 | -6.71 | 165.42 | 0.4102 | -709.0 | -564.5 | |
| 0.00 | 1.42 | 0.00 | 0.77 | -27.77 | 166.60 | -7.29 | 163.79 | 0.4040 | -679.0 | -502.9 | |
| 0.00 | 1.24 | 0.00 | 0.65 | -20.89 | 166.42 | -7.48 | 156.01 | 0.3004 | -752.0 | -618.2 | |
| 0.00 | 0.71 | 0.00 | 0.36 | -10.19 | 162.63 | -11.27 | 115.25 | 0.2136 | -437.0 | -504.0 | |
| 0.00 | 1.95 | 0.00 | 1.01 | -16.82 | 162.07 | -11.83 | 136.31 | 0.2852 | -858.0 | -713.5 | |
| 0.00 | 1.15 | 0.00 | 0.60 | -18.45 | 161.66 | -12.23 | 139.25 | 0.3092 | -738.0 | -576.8 | |
| 0.00 | 1.42 | 0.00 | 0.75 | -20.59 | 161.40 | -12.50 | 143.07 | 0.3386 | -777.0 | -646.2 | |
| 0.00 | 1.24 | 0.00 | 0.65 | -18.48 | 161.44 | -12.46 | 138.80 | 0.3120 | -855.0 | -574.6 | |
| 0.00 | 1.15 | 0.00 | 0.60 | -18.94 | 161.11 | -12.79 | 139.09 | 0.3211 | -790.0 | -708.5 | |
| 0.00 | 0.89 | 0.00 | 0.46 | -18.59 | 160.68 | -13.22 | 137.41 | 0.3217 | -891.0 | -760.7 | |
| 0.00 | 2.40 | 0.00 | 1.30 | -23.45 | 158.08 | -15.81 | 141.86 | 0.4065 | -1118.0 | -789.8 | |
| 0.00 | 0.80 | 0.00 | 0.43 | -23.25 | 157.63 | -16.27 | 140.77 | 0.4086 | -791.0 | -648.8 | |
| 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. | |