SDO HMI 2011-08-28 04:59:08 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 |
| 6.55 | 25.04 | 3.27 | 12.56 | 7.48 | 345.59 | 8.82 | 272.75 | 0.1530 | -57.3 | 4.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-28 04:59:08 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 |
| 0.00 | 0.81 | 0.00 | 0.41 | 7.29 | 351.80 | 15.02 | 271.62 | 0.2584 | -941.0 | -738.3 | |
| 0.00 | 2.24 | 0.00 | 1.15 | 7.64 | 351.46 | 14.69 | 272.98 | 0.2528 | -848.0 | -701.3 | |
| 0.00 | 2.06 | 0.00 | 1.05 | 7.32 | 350.89 | 14.11 | 271.73 | 0.2430 | -839.0 | -633.1 | |
| 0.00 | 1.53 | 0.00 | 0.77 | 6.96 | 347.59 | 10.82 | 269.80 | 0.1871 | -807.0 | -557.5 | |
| 0.00 | 0.90 | 0.00 | 0.45 | 7.10 | 346.64 | 9.86 | 270.50 | 0.1707 | -957.0 | -759.1 | |
| 0.00 | 1.26 | 0.00 | 0.63 | 8.05 | 346.25 | 9.48 | 276.25 | 0.1647 | -921.0 | -684.4 | |
| 2.51 | 3.41 | 1.26 | 1.71 | 8.36 | 345.83 | 9.05 | 278.46 | 0.1580 | -1037.1 | -908.9 | |
| 0.00 | 1.44 | 0.00 | 0.72 | 8.72 | 343.95 | 7.17 | 283.21 | 0.1273 | 811.0 | 650.6 | |
| 0.00 | 1.79 | 0.00 | 0.89 | 7.73 | 343.22 | 6.44 | 275.91 | 0.1123 | 918.0 | 776.6 | |
| 0.00 | 2.87 | 0.00 | 1.43 | 7.13 | 343.03 | 6.25 | 270.50 | 0.1085 | 1008.0 | 815.1 | |
| 4.04 | 5.20 | 2.01 | 2.59 | 6.71 | 342.41 | 5.63 | 266.21 | 0.0981 | 1107.4 | 989.5 | |
| 0.00 | 1.53 | 0.00 | 0.76 | 7.65 | 342.36 | 5.58 | 275.88 | 0.0974 | 896.0 | 703.1 | |
| 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. | |