SDO HMI 2011-08-28 11:59:08 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 |
| 8.52 | 31.56 | 4.30 | 15.95 | 17.37 | 329.07 | -3.87 | 345.85 | 0.1971 | 130.3 | -76.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-28 11:59:08 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 | 1.43 | 0.00 | 0.72 | 14.94 | 337.19 | 4.25 | 332.36 | 0.1550 | 689.0 | 485.9 | |
| 0.00 | 2.69 | 0.00 | 1.36 | 18.03 | 332.48 | -0.46 | 2.33 | 0.1905 | -613.0 | -650.8 | |
| 0.00 | 1.52 | 0.00 | 0.77 | 17.72 | 332.35 | -0.59 | 3.05 | 0.1853 | -970.0 | -790.2 | |
| 0.00 | 0.90 | 0.00 | 0.45 | 19.04 | 329.72 | -3.22 | 14.40 | 0.2146 | -737.0 | -600.8 | |
| 0.00 | 4.21 | 0.00 | 2.14 | 19.44 | 329.10 | -3.84 | 16.46 | 0.2240 | -1062.0 | -844.6 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 19.09 | 328.66 | -4.28 | 18.74 | 0.2207 | -934.0 | -827.6 | |
| 5.11 | 14.98 | 2.58 | 7.56 | 17.24 | 328.57 | -4.36 | 22.41 | 0.1916 | 1028.2 | 745.3 | |
| 3.41 | -7.00 | 1.72 | -7.00 | 17.11 | 328.35 | -4.58 | 23.68 | 0.1911 | 1058.8 | 999999 | |
| 0.00 | 1.88 | 0.00 | 0.96 | 19.20 | 327.30 | -5.64 | 23.82 | 0.2307 | -897.0 | -655.3 | |
| 0.00 | 1.61 | 0.00 | 0.81 | 13.40 | 325.02 | -7.92 | 50.41 | 0.1746 | 881.0 | 574.2 | |
| 0.00 | 1.35 | 0.00 | 0.68 | 13.52 | 323.51 | -9.43 | 54.56 | 0.1965 | 902.0 | 701.4 | |
| 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. | |