SDO HMI 2011-10-20 18:59:01 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 |
| 38.22 | 258.54 | 54.24 | 373.10 | 15.64 | 279.16 | -70.36 | 75.30 | 0.9379 | -290.1 | 16.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 18:59:01 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 | 1.22 | 0.00 | 1.21 | 15.75 | 289.24 | -60.28 | 74.94 | 0.8676 | -472.0 | -400.2 | |
| 0.00 | 1.04 | 0.00 | 1.14 | 12.65 | 286.11 | -63.41 | 78.57 | 0.8921 | -416.0 | -391.1 | |
| 0.00 | 3.66 | 0.00 | 4.86 | 16.80 | 280.69 | -68.83 | 74.07 | 0.9300 | -369.0 | -251.9 | |
| 10.45 | 189.16 | 13.57 | 254.83 | 15.76 | 281.29 | -68.23 | 75.18 | 0.9261 | -721.2 | -48.5 | |
| 5.14 | -4.00 | 6.86 | -4.00 | 16.20 | 280.62 | -68.89 | 74.72 | 0.9303 | -232.2 | 999999 | |
| 3.13 | -4.00 | 4.17 | -4.00 | 15.62 | 280.71 | -68.81 | 75.34 | 0.9298 | -396.0 | 999999 | |
| 4.18 | -4.00 | 5.59 | -4.00 | 15.27 | 280.61 | -68.91 | 75.72 | 0.9304 | -494.8 | 999999 | |
| 0.00 | 30.12 | 0.00 | 44.00 | 17.17 | 278.62 | -70.90 | 73.69 | 0.9421 | 645.0 | 457.8 | |
| 8.01 | -4.00 | 10.80 | -4.00 | 14.85 | 280.38 | -69.13 | 76.17 | 0.9318 | -533.7 | 999999 | |
| 2.09 | -4.00 | 2.87 | -4.00 | 14.88 | 280.01 | -69.51 | 76.14 | 0.9340 | 138.8 | 999999 | |
| 0.00 | 1.74 | 0.00 | 3.24 | 15.64 | 274.00 | -75.51 | 75.25 | 0.9653 | 425.0 | 303.7 | |
| 0.00 | 1.83 | 0.00 | 3.38 | 15.35 | 274.19 | -75.32 | 75.56 | 0.9645 | 377.0 | 321.4 | |
| 5.22 | 29.77 | 10.38 | 60.44 | 15.24 | 273.02 | -76.50 | 75.64 | 0.9696 | 336.9 | -91.7 | |
| 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. | |