SDO HMI 2014-04-17 18:00:34 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 | 17.43 | 0.00 | 9.46 | -15.39 | 201.66 | -21.21 | 116.58 | 0.3929 | -621.2 | -504.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-17 18:00:34 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 | 2.48 | 0.00 | 1.25 | -7.30 | 212.14 | -10.73 | 100.59 | 0.1888 | -932.0 | -712.0 | |
| 0.00 | 1.42 | 0.00 | 0.73 | -13.29 | 208.34 | -14.53 | 119.82 | 0.2827 | 854.0 | 631.1 | |
| 0.00 | 0.97 | 0.00 | 0.51 | -13.16 | 203.73 | -19.14 | 113.66 | 0.3501 | -827.0 | -713.0 | |
| 0.00 | 0.97 | 0.00 | 0.53 | -17.96 | 202.64 | -20.23 | 124.12 | 0.3990 | -847.0 | -724.8 | |
| 0.00 | 0.97 | 0.00 | 0.53 | -18.08 | 202.46 | -20.41 | 124.16 | 0.4024 | -785.0 | -676.3 | |
| 0.00 | 0.44 | 0.00 | 0.24 | -18.85 | 202.23 | -20.64 | 125.51 | 0.4116 | -789.0 | -655.8 | |
| 0.00 | 3.27 | 0.00 | 1.77 | -17.49 | 202.26 | -20.61 | 122.63 | 0.4003 | -754.0 | -531.5 | |
| 0.00 | 0.89 | 0.00 | 0.48 | -15.83 | 202.25 | -20.62 | 118.85 | 0.3885 | -762.0 | -514.1 | |
| 0.00 | 1.86 | 0.00 | 1.00 | -16.43 | 201.85 | -21.02 | 119.81 | 0.3982 | -890.0 | -671.8 | |
| 0.00 | 2.30 | 0.00 | 1.34 | -18.35 | 192.87 | -30.00 | 116.43 | 0.5320 | -424.0 | -475.3 | |
| 0.00 | 0.89 | 0.00 | 0.51 | -15.48 | 192.80 | -30.07 | 111.17 | 0.5199 | -787.0 | -615.1 | |
| 0.00 | 0.97 | 0.00 | 0.57 | -15.64 | 192.27 | -30.60 | 111.20 | 0.5279 | -512.0 | -470.7 | |
| 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. | |