SDO HMI 2014-07-04 16:00:40 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 |
| 18.80 | 85.82 | 25.32 | 116.38 | 5.99 | 203.59 | -68.63 | 84.83 | 0.9314 | -422.1 | -57.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-04 16:00:40 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 | 6.27 | 0.00 | 8.10 | 6.42 | 204.57 | -67.65 | 84.38 | 0.9251 | -638.0 | -527.6 | |
| 0.00 | 0.27 | 0.00 | 0.37 | 7.56 | 203.30 | -68.92 | 83.15 | 0.9332 | -222.0 | -171.3 | |
| 17.62 | 75.82 | 23.70 | 102.86 | 5.85 | 203.64 | -68.58 | 84.98 | 0.9312 | -491.5 | -6.1 | |
| 0.00 | 1.73 | 0.00 | 2.36 | 7.12 | 203.27 | -68.95 | 83.61 | 0.9334 | -389.0 | -286.5 | |
| 1.18 | -3.00 | 1.62 | -3.00 | 6.62 | 203.08 | -69.14 | 84.15 | 0.9346 | -80.2 | 999999 | |
| 0.00 | 0.91 | 0.00 | 1.28 | 6.93 | 202.54 | -69.68 | 83.80 | 0.9379 | -104.0 | -64.4 | |
| 0.00 | 0.82 | 0.00 | 1.41 | 7.13 | 198.61 | -73.62 | 83.53 | 0.9593 | 336.0 | 261.3 | |
| 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. | |