SDO HMI 2011-08-30 21:59:08 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 |
| 16.11 | 45.94 | 8.37 | 23.91 | 24.87 | 299.25 | -1.75 | 5.02 | 0.3081 | -284.3 | -40.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 21:59:08 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 |
| 8.68 | 24.17 | 4.51 | 12.56 | 24.58 | 300.99 | -0.01 | 0.02 | 0.3005 | -1081.2 | -705.8 | |
| 4.30 | -1.00 | 2.23 | -1.00 | 24.80 | 300.89 | -0.11 | 0.32 | 0.3042 | -905.3 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.47 | 25.85 | 299.14 | -1.86 | 5.20 | 0.3230 | 749.0 | 562.7 | |
| 0.00 | 1.25 | 0.00 | 0.65 | 24.16 | 298.73 | -2.26 | 7.02 | 0.2958 | -850.0 | -731.1 | |
| 1.70 | 4.92 | 0.88 | 2.55 | 24.16 | 298.40 | -2.59 | 8.04 | 0.2965 | -809.6 | -601.4 | |
| 0.00 | 2.06 | 0.00 | 1.07 | 24.82 | 297.48 | -3.51 | 10.37 | 0.3098 | 819.0 | 570.5 | |
| 0.00 | 0.72 | 0.00 | 0.37 | 25.68 | 297.16 | -3.84 | 10.75 | 0.3247 | 640.0 | 502.0 | |
| 0.00 | 6.54 | 0.00 | 3.42 | 25.45 | 296.96 | -4.03 | 11.43 | 0.3217 | 879.0 | 859.3 | |
| 0.00 | 0.72 | 0.00 | 0.38 | 25.74 | 296.89 | -4.11 | 11.44 | 0.3266 | 645.0 | 563.2 | |
| 0.00 | 2.42 | 0.00 | 1.26 | 25.23 | 296.70 | -4.29 | 12.31 | 0.3190 | 970.0 | 820.7 | |
| 1.43 | 2.24 | 0.75 | 1.18 | 26.11 | 295.62 | -5.37 | 14.50 | 0.3372 | -819.5 | -703.3 | |
| 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. | |