SDO HMI 2011-05-29 20:59:10 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 |
| 18.32 | 109.46 | 27.90 | 168.36 | 16.74 | 21.98 | -69.85 | 71.91 | 0.9472 | -464.5 | -99.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-29 20:59:10 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 |
| 1.08 | 108.20 | 1.65 | 165.97 | 17.44 | 22.13 | -69.71 | 71.15 | 0.9469 | -279.7 | -105.7 | |
| 13.72 | -1.00 | 20.80 | -1.00 | 16.68 | 22.12 | -69.71 | 71.96 | 0.9464 | -700.6 | 999999 | |
| 3.52 | -1.00 | 5.45 | -1.00 | 16.75 | 21.69 | -70.15 | 71.94 | 0.9487 | 236.8 | 999999 | |
| 0.00 | 1.26 | 0.00 | 2.39 | 16.97 | 18.04 | -73.80 | 72.11 | 0.9663 | 319.0 | 239.4 | |
| 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. | |