SDO HMI 2014-04-23 16:02:05 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 | 20.44 | 0.00 | 10.86 | -17.54 | 161.43 | 16.72 | 232.53 | 0.3615 | -749.9 | -628.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-23 16:02:05 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 | 1.60 | 0.00 | 0.92 | -27.48 | 166.65 | 21.94 | 220.39 | 0.5135 | -807.0 | -634.4 | |
| 0.00 | 1.60 | 0.00 | 0.83 | -9.73 | 161.93 | 17.21 | 253.20 | 0.3060 | -725.0 | -565.2 | |
| 0.00 | 1.33 | 0.00 | 0.69 | -9.21 | 161.90 | 17.19 | 254.82 | 0.3036 | -591.0 | -429.0 | |
| 0.00 | 3.82 | 0.00 | 2.03 | -17.17 | 162.31 | 17.60 | 233.17 | 0.3625 | -599.0 | -575.7 | |
| 0.00 | 0.98 | 0.00 | 0.51 | -9.98 | 161.36 | 16.65 | 251.90 | 0.2982 | -655.0 | -547.5 | |
| 0.00 | 0.80 | 0.00 | 0.42 | -17.43 | 161.58 | 16.87 | 231.45 | 0.3555 | -616.0 | -496.4 | |
| 0.00 | 1.60 | 0.00 | 0.83 | -11.06 | 160.72 | 16.01 | 247.76 | 0.2937 | -934.0 | -748.4 | |
| 0.00 | 1.15 | 0.00 | 0.61 | -17.73 | 160.58 | 15.87 | 229.15 | 0.3459 | -845.0 | -691.7 | |
| 0.00 | 2.49 | 0.00 | 1.31 | -17.92 | 160.50 | 15.79 | 228.58 | 0.3468 | -697.0 | -750.8 | |
| 0.00 | 1.69 | 0.00 | 0.89 | -18.82 | 160.29 | 15.58 | 226.21 | 0.3536 | -875.0 | -704.9 | |
| 0.00 | 1.60 | 0.00 | 0.87 | -24.82 | 160.38 | 15.67 | 215.50 | 0.4239 | -811.0 | -633.4 | |
| 0.00 | 0.80 | 0.00 | 0.43 | -22.97 | 158.23 | 13.52 | 214.54 | 0.3811 | -771.0 | -715.7 | |
| 0.00 | 0.98 | 0.00 | 0.52 | -22.75 | 158.11 | 13.39 | 214.67 | 0.3771 | -823.0 | -589.5 | |
| 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. | |