SDO HMI 2014-11-20 00:00:26 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 | 3.69 | 0.00 | 2.07 | 19.73 | 255.26 | 9.95 | 181.00 | 0.4555 | 621.2 | 545.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-11-20 00:00:26 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 | 0.34 | 0.00 | 0.22 | 8.24 | 285.75 | 40.44 | 279.99 | 0.6542 | 585.0 | 513.0 | |
| 0.00 | 1.03 | 0.00 | 0.57 | 15.70 | 267.50 | 22.19 | 302.86 | 0.4347 | 750.0 | 590.6 | |
| 0.00 | 0.86 | 0.00 | 0.44 | 7.71 | 260.27 | 14.96 | 290.55 | 0.2744 | 687.0 | 567.1 | |
| 0.00 | 0.26 | 0.00 | 0.15 | 31.20 | 239.23 | -6.08 | 10.61 | 0.4941 | 439.0 | 504.0 | |
| 0.00 | 1.20 | 0.00 | 0.69 | 31.90 | 235.73 | -9.58 | 15.94 | 0.5165 | 645.0 | 514.4 | |
| 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. | |