SDO HMI 2011-04-30 06:59:07 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 |
| 13.73 | 25.86 | 12.88 | 24.34 | 15.37 | 178.47 | 55.40 | 291.04 | 0.8521 | -12.5 | -236.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-30 06:59:07 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 |
| 2.05 | 2.94 | 2.03 | 2.91 | 15.44 | 180.26 | 57.19 | 290.60 | 0.8675 | -266.0 | -289.1 | |
| 0.00 | 3.48 | 0.00 | 3.37 | 14.99 | 179.67 | 56.60 | 290.26 | 0.8616 | -630.0 | -511.8 | |
| 1.16 | 8.74 | 1.13 | 8.49 | 15.28 | 179.73 | 56.66 | 290.57 | 0.8628 | -707.3 | -541.4 | |
| 3.92 | -3.00 | 3.82 | -3.00 | 15.59 | 179.64 | 56.56 | 290.94 | 0.8627 | -555.9 | 999999 | |
| 6.60 | 8.74 | 5.90 | 7.81 | 15.23 | 176.47 | 53.40 | 291.49 | 0.8346 | 531.5 | 295.1 | |
| 0.00 | 1.07 | 0.00 | 0.97 | 16.52 | 176.65 | 53.58 | 292.91 | 0.8396 | 262.0 | 275.5 | |
| 0.00 | 0.89 | 0.00 | 0.79 | 14.99 | 176.06 | 52.99 | 291.33 | 0.8303 | 496.0 | 444.1 | |
| 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. | |