SDO HMI 2011-09-03 11:59:07 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 |
| 7.25 | 29.24 | 4.56 | 18.44 | 13.29 | 292.05 | 38.37 | 282.36 | 0.6207 | -708.0 | -603.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-09-03 11:59:07 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 | 1.79 | 0.00 | 1.15 | 13.27 | 293.49 | 39.81 | 282.13 | 0.6396 | -542.0 | -472.5 | |
| 3.58 | 18.06 | 2.26 | 11.37 | 13.15 | 292.22 | 38.54 | 282.11 | 0.6227 | -665.5 | -619.0 | |
| 0.00 | 1.61 | 0.00 | 1.01 | 12.78 | 291.91 | 38.23 | 281.55 | 0.6182 | -246.0 | -287.5 | |
| 0.00 | 3.76 | 0.00 | 2.37 | 13.48 | 291.96 | 38.28 | 282.67 | 0.6197 | -762.0 | -743.8 | |
| 0.00 | 4.02 | 0.00 | 2.54 | 13.94 | 291.97 | 38.29 | 283.41 | 0.6205 | -870.0 | -616.8 | |
| 3.67 | -2.00 | 2.30 | -2.00 | 13.16 | 291.70 | 38.02 | 282.20 | 0.6159 | -928.7 | 999999 | |
| 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. | |