SDO HMI 2014-10-28 04:00:29 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 |
| 14.76 | 55.73 | 8.17 | 30.85 | -3.28 | 161.02 | -25.34 | 107.18 | 0.4492 | 1112.8 | 469.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-28 04:00:29 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 |
| 14.76 | 53.30 | 8.17 | 29.49 | -3.32 | 161.09 | -25.27 | 107.32 | 0.4483 | 1191.3 | 455.7 | |
| 0.00 | 1.39 | 0.00 | 0.78 | -2.32 | 159.49 | -26.87 | 104.24 | 0.4679 | 811.0 | 685.1 | |
| 0.00 | 1.04 | 0.00 | 0.58 | -2.39 | 159.28 | -27.07 | 104.27 | 0.4712 | 773.0 | 664.7 | |
| 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. | |