SDO HMI 2011-08-29 19:59:08 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 |
| 16.30 | 50.15 | 8.86 | 27.30 | 25.19 | 298.12 | -17.18 | 40.28 | 0.4149 | 78.9 | 241.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-29 19:59:08 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 |
| 6.63 | 17.28 | 3.58 | 9.35 | 24.90 | 299.28 | -16.03 | 39.00 | 0.3997 | -1034.3 | -325.1 | |
| 4.03 | 8.60 | 2.18 | 4.66 | 25.37 | 299.21 | -16.09 | 38.29 | 0.4059 | -818.3 | -466.9 | |
| 0.00 | 2.33 | 0.00 | 1.27 | 25.09 | 297.54 | -17.77 | 41.39 | 0.4197 | 794.0 | 608.9 | |
| 0.00 | 1.61 | 0.00 | 0.88 | 25.40 | 297.32 | -17.99 | 41.19 | 0.4254 | 737.0 | 578.1 | |
| 0.00 | 0.63 | 0.00 | 0.34 | 24.92 | 297.32 | -17.99 | 42.01 | 0.4202 | 870.0 | 757.7 | |
| 0.00 | 1.43 | 0.00 | 0.78 | 25.21 | 297.17 | -18.14 | 41.74 | 0.4248 | 728.0 | 641.2 | |
| 4.21 | 16.93 | 2.31 | 9.28 | 25.45 | 296.85 | -18.46 | 41.79 | 0.4308 | 887.6 | 798.3 | |
| 1.43 | -7.00 | 0.79 | -7.00 | 25.31 | 296.66 | -18.65 | 42.29 | 0.4313 | 793.9 | 999999 | |
| 0.00 | 1.34 | 0.00 | 0.74 | 24.90 | 296.59 | -18.72 | 43.12 | 0.4277 | 774.0 | 678.9 | |
| 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. | |