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 | 11.88 | 0.00 | 6.96 | -19.60 | 163.68 | -28.91 | 119.74 | 0.5309 | -671.8 | -541.3 | |
|
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 | 1.24 | 0.00 | 0.73 | -27.82 | 168.48 | -24.10 | 137.29 | 0.5346 | -685.0 | -557.9 | |
| 0.00 | 0.80 | 0.00 | 0.45 | -24.48 | 169.17 | -23.41 | 132.95 | 0.4960 | -787.0 | -643.6 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -19.33 | 169.82 | -22.76 | 124.44 | 0.4446 | -772.0 | -619.3 | |
| 0.00 | 1.86 | 0.00 | 1.05 | -18.04 | 166.88 | -25.71 | 119.18 | 0.4743 | -575.0 | -480.2 | |
| 0.00 | 0.80 | 0.00 | 0.45 | -16.35 | 165.66 | -26.92 | 114.98 | 0.4813 | -758.0 | -564.2 | |
| 0.00 | 0.80 | 0.00 | 0.48 | -19.98 | 161.32 | -31.27 | 118.70 | 0.5583 | -644.0 | -518.7 | |
| 0.00 | 0.62 | 0.00 | 0.37 | -17.32 | 161.13 | -31.46 | 114.05 | 0.5477 | -691.0 | -552.1 | |
| 0.00 | 1.42 | 0.00 | 0.84 | -17.50 | 160.87 | -31.72 | 114.22 | 0.5519 | -691.0 | -566.2 | |
| 0.00 | 1.24 | 0.00 | 0.72 | -9.73 | 160.88 | -31.71 | 100.07 | 0.5282 | -651.0 | -534.8 | |
| 0.00 | 1.42 | 0.00 | 0.89 | -23.13 | 157.95 | -34.63 | 121.66 | 0.6163 | -610.0 | -510.6 | |
| 0.00 | 0.62 | 0.00 | 0.39 | -23.41 | 157.79 | -34.80 | 121.98 | 0.6197 | -526.0 | -457.4 | |
| 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. | |