SDO HMI 2011-04-26 11:59:06 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 |
| 8.10 | 24.30 | 6.36 | 19.20 | -17.29 | 122.47 | -50.72 | 108.50 | 0.7813 | -38.0 | -43.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-26 11:59:06 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 |
| 2.05 | 4.89 | 1.53 | 3.67 | -16.74 | 125.13 | -48.06 | 108.28 | 0.7525 | 672.0 | 543.9 | |
| 2.31 | 2.85 | 1.78 | 2.19 | -17.20 | 123.91 | -49.28 | 108.65 | 0.7664 | 481.7 | 513.7 | |
| 0.00 | 4.63 | 0.00 | 3.64 | -17.25 | 122.76 | -50.43 | 108.51 | 0.7786 | 291.0 | 323.1 | |
| 0.00 | 1.25 | 0.00 | 1.01 | -17.26 | 121.24 | -51.95 | 108.25 | 0.7942 | -527.0 | -412.6 | |
| 3.74 | 9.43 | 3.05 | 7.68 | -17.62 | 120.99 | -52.20 | 108.66 | 0.7972 | -479.8 | -490.6 | |
| 0.00 | 1.25 | 0.00 | 1.01 | -17.10 | 121.20 | -51.99 | 108.05 | 0.7943 | -542.0 | -416.1 | |
| 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. | |