SDO HMI 2011-10-20 01:59:01 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 |
| 8.72 | 33.89 | 5.44 | 21.28 | 19.42 | 322.64 | -36.21 | 65.22 | 0.6162 | 719.7 | 593.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 01:59:01 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 | 1.31 | 0.00 | 0.76 | 15.24 | 327.93 | -30.92 | 69.85 | 0.5302 | 595.0 | 436.5 | |
| 0.00 | 1.39 | 0.00 | 0.87 | 22.70 | 323.88 | -34.97 | 59.51 | 0.6158 | 571.0 | 375.9 | |
| 8.72 | 18.74 | 5.44 | 11.70 | 19.31 | 323.04 | -35.81 | 65.17 | 0.6107 | 918.2 | 749.2 | |
| 0.00 | 1.39 | 0.00 | 0.91 | 24.42 | 321.30 | -37.55 | 58.34 | 0.6542 | 533.0 | 412.9 | |
| 0.00 | 4.53 | 0.00 | 2.83 | 18.49 | 322.73 | -36.11 | 66.59 | 0.6113 | 553.0 | 524.6 | |
| 0.00 | 1.83 | 0.00 | 1.16 | 19.57 | 322.07 | -36.78 | 65.20 | 0.6238 | 680.0 | 515.1 | |
| 0.00 | 1.13 | 0.00 | 0.74 | 21.78 | 319.87 | -38.98 | 62.82 | 0.6589 | 583.0 | 534.0 | |
| 0.00 | 0.26 | 0.00 | 0.16 | 16.14 | 321.37 | -37.48 | 70.81 | 0.6212 | 554.0 | 537.0 | |
| 0.00 | 0.87 | 0.00 | 0.57 | 20.12 | 319.85 | -39.00 | 65.26 | 0.6529 | 610.0 | 427.3 | |
| 0.00 | 1.13 | 0.00 | 0.71 | 12.92 | 321.31 | -37.54 | 76.00 | 0.6143 | 776.0 | 609.1 | |
| 0.00 | 1.31 | 0.00 | 0.87 | 22.32 | 318.81 | -40.03 | 62.50 | 0.6732 | 662.0 | 508.9 | |
| 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. | |