SDO HMI 2014-04-25 11:00:35 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 |
| 46.34 | 288.36 | 35.71 | 221.95 | 18.14 | 166.09 | 45.04 | 298.52 | 0.7676 | -891.9 | -252.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 11:00:35 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 |
| 46.34 | 281.42 | 35.71 | 216.84 | 18.12 | 166.16 | 45.11 | 298.46 | 0.7682 | -1047.6 | -272.2 | |
| 0.00 | 3.29 | 0.00 | 2.45 | 19.31 | 163.59 | 42.53 | 301.22 | 0.7483 | 387.0 | 431.8 | |
| 0.00 | 2.05 | 0.00 | 1.49 | 17.96 | 162.87 | 41.81 | 299.96 | 0.7343 | 577.0 | 499.5 | |
| 0.00 | 0.53 | 0.00 | 0.39 | 19.03 | 162.25 | 41.20 | 301.63 | 0.7336 | 551.0 | 485.8 | |
| 0.00 | 1.07 | 0.00 | 0.78 | 20.27 | 161.96 | 40.90 | 303.30 | 0.7373 | 475.0 | 406.2 | |
| 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. | |