SDO HMI 2011-12-18 09:58:55 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 |
| 0.00 | 14.39 | 0.00 | 8.47 | -19.57 | 324.05 | 27.31 | 233.88 | 0.5385 | -349.8 | -222.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-18 09:58:55 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 | 1.02 | 0.00 | 0.63 | -20.91 | 327.97 | 31.23 | 235.03 | 0.5933 | -488.0 | -403.5 | |
| 0.00 | 2.13 | 0.00 | 1.26 | -17.30 | 326.01 | 29.27 | 239.18 | 0.5457 | 740.0 | 530.1 | |
| 0.00 | 1.36 | 0.00 | 0.80 | -16.93 | 325.66 | 28.92 | 239.52 | 0.5390 | 605.0 | 384.2 | |
| 0.00 | 1.02 | 0.00 | 0.60 | -17.22 | 324.83 | 28.09 | 238.38 | 0.5303 | 817.0 | 696.2 | |
| 0.00 | 1.62 | 0.00 | 0.97 | -22.62 | 324.37 | 27.64 | 229.48 | 0.5655 | -652.0 | -508.2 | |
| 0.00 | 1.28 | 0.00 | 0.77 | -23.55 | 323.71 | 26.97 | 227.51 | 0.5662 | -605.0 | -451.3 | |
| 0.00 | 1.11 | 0.00 | 0.66 | -23.29 | 323.48 | 26.74 | 227.64 | 0.5615 | -780.0 | -578.4 | |
| 0.00 | 0.85 | 0.00 | 0.49 | -17.76 | 322.31 | 25.58 | 235.21 | 0.5027 | -823.0 | -702.3 | |
| 0.00 | 1.36 | 0.00 | 0.78 | -17.98 | 322.28 | 25.54 | 234.80 | 0.5039 | -757.0 | -711.5 | |
| 0.00 | 1.28 | 0.00 | 0.73 | -18.97 | 321.88 | 25.15 | 232.74 | 0.5070 | -726.0 | -563.1 | |
| 0.00 | 0.68 | 0.00 | 0.39 | -18.36 | 321.55 | 24.81 | 233.43 | 0.4979 | -860.0 | -714.1 | |
| 0.00 | 0.68 | 0.00 | 0.39 | -19.73 | 320.05 | 23.31 | 229.51 | 0.4918 | -669.0 | -538.8 | |
| 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. | |