SDO HMI 2014-03-30 17:00:31 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 | 9.13 | 0.00 | 5.15 | -27.12 | 81.09 | -19.90 | 142.00 | 0.4721 | -361.6 | -383.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 17:00:31 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 | 1.05 | 0.00 | 0.54 | -19.66 | 97.57 | -3.42 | 166.03 | 0.2337 | 867.0 | 664.5 | |
| 0.00 | 0.70 | 0.00 | 0.38 | -26.97 | 90.70 | -10.29 | 155.51 | 0.3857 | 788.0 | 711.0 | |
| 0.00 | 0.88 | 0.00 | 0.49 | -26.99 | 83.14 | -17.85 | 142.27 | 0.4482 | -792.0 | -620.7 | |
| 0.00 | 0.88 | 0.00 | 0.49 | -27.39 | 80.76 | -20.24 | 139.60 | 0.4758 | -726.0 | -559.3 | |
| 0.00 | 2.02 | 0.00 | 1.15 | -29.31 | 80.18 | -20.81 | 141.70 | 0.5019 | -827.0 | -695.9 | |
| 0.00 | 1.14 | 0.00 | 0.67 | -29.04 | 76.22 | -24.77 | 136.84 | 0.5376 | -805.0 | -587.7 | |
| 0.00 | 1.58 | 0.00 | 0.92 | -27.29 | 74.79 | -26.20 | 132.81 | 0.5369 | -573.0 | -549.0 | |
| 0.00 | 0.88 | 0.00 | 0.51 | -27.24 | 74.62 | -26.38 | 132.58 | 0.5385 | -825.0 | -616.2 | |
| 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. | |