SDO HMI 2011-08-28 15:59:08 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 |
| 6.37 | 32.35 | 3.20 | 16.33 | 17.11 | 328.68 | -2.06 | 327.64 | 0.1865 | 21.6 | -39.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-28 15:59:08 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 | 0.90 | 0.00 | 0.45 | 12.07 | 335.52 | 4.79 | 316.80 | 0.1198 | -795.0 | -624.6 | |
| 0.00 | 2.33 | 0.00 | 1.16 | 12.72 | 334.38 | 3.65 | 327.64 | 0.1166 | -867.0 | -749.6 | |
| 0.00 | 2.06 | 0.00 | 1.04 | 17.69 | 332.47 | 1.73 | 351.07 | 0.1867 | -1001.0 | -838.4 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 18.12 | 332.12 | 1.39 | 353.12 | 0.1933 | -771.0 | -560.2 | |
| 0.63 | 4.48 | 0.32 | 2.27 | 19.45 | 329.31 | -1.43 | 6.26 | 0.2160 | -969.1 | -895.5 | |
| 0.00 | 1.88 | 0.00 | 0.95 | 19.13 | 328.64 | -2.10 | 9.41 | 0.2123 | -976.0 | -776.5 | |
| 2.69 | 9.50 | 1.35 | 4.79 | 17.28 | 328.63 | -2.10 | 11.22 | 0.1810 | 1022.1 | 732.0 | |
| 3.05 | -7.00 | 1.53 | -7.00 | 17.22 | 328.37 | -2.36 | 12.61 | 0.1809 | 1040.7 | 999999 | |
| 0.00 | 2.24 | 0.00 | 1.13 | 15.92 | 326.47 | -4.27 | 24.98 | 0.1701 | 916.0 | 776.8 | |
| 0.00 | 4.12 | 0.00 | 2.11 | 20.95 | 326.27 | -4.46 | 16.85 | 0.2515 | 300.0 | 278.8 | |
| 0.00 | 1.97 | 0.00 | 0.98 | 12.00 | 325.14 | -5.59 | 47.97 | 0.1289 | 887.0 | 735.4 | |
| 0.00 | 1.88 | 0.00 | 0.95 | 13.50 | 323.57 | -7.16 | 47.17 | 0.1660 | 899.0 | 741.2 | |
| 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. | |