SDO HMI 2011-02-27 04:58:58 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 |
| 6.38 | 25.84 | 4.91 | 19.96 | 17.03 | 177.72 | -44.33 | 60.60 | 0.7687 | -220.9 | -16.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-27 04:58:58 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 | 2.15 | 0.00 | 1.58 | 15.93 | 180.22 | -41.83 | 60.56 | 0.7388 | 640.0 | 616.8 | |
| 0.00 | 2.15 | 0.00 | 1.58 | 15.79 | 179.96 | -42.09 | 60.87 | 0.7407 | 685.0 | 549.4 | |
| 0.00 | 1.72 | 0.00 | 1.27 | 15.93 | 179.76 | -42.29 | 60.81 | 0.7435 | 413.0 | 377.9 | |
| 0.00 | 1.98 | 0.00 | 1.46 | 15.65 | 179.71 | -42.34 | 61.19 | 0.7426 | 631.0 | 614.4 | |
| 6.38 | 9.05 | 4.91 | 6.97 | 17.32 | 177.96 | -44.09 | 60.15 | 0.7682 | -679.6 | -505.8 | |
| 0.00 | 0.60 | 0.00 | 0.46 | 15.84 | 178.26 | -43.79 | 61.74 | 0.7582 | 574.0 | 542.6 | |
| 0.00 | 1.38 | 0.00 | 1.11 | 18.67 | 176.37 | -45.68 | 59.43 | 0.7896 | -574.0 | -452.4 | |
| 0.00 | 1.38 | 0.00 | 1.12 | 18.39 | 175.51 | -46.54 | 60.18 | 0.7961 | -460.0 | -394.9 | |
| 0.00 | 1.03 | 0.00 | 0.84 | 18.31 | 175.36 | -46.69 | 60.35 | 0.7972 | -424.0 | -303.3 | |
| 0.00 | 1.38 | 0.00 | 1.10 | 16.71 | 175.80 | -46.25 | 61.97 | 0.7860 | -584.0 | -528.5 | |
| 0.00 | 1.12 | 0.00 | 0.91 | 17.66 | 175.36 | -46.69 | 61.10 | 0.7943 | -535.0 | -389.8 | |
| 0.00 | 1.90 | 0.00 | 1.56 | 17.69 | 174.75 | -47.30 | 61.36 | 0.8000 | -544.0 | -345.8 | |
| 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. | |