SDO HMI 2011-10-20 16:59:01 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 |
| 43.62 | 244.98 | 67.14 | 376.44 | 15.67 | 278.87 | -71.75 | 75.26 | 0.9456 | -129.6 | 5.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 16:59:01 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 | 0.70 | 0.00 | 0.97 | 16.93 | 280.78 | -69.84 | 73.95 | 0.9361 | -261.0 | -200.2 | |
| 0.00 | 0.61 | 0.00 | 0.85 | 16.76 | 280.65 | -69.98 | 74.13 | 0.9369 | -237.0 | -229.6 | |
| 8.18 | 175.59 | 11.11 | 247.63 | 15.77 | 281.34 | -69.28 | 75.19 | 0.9327 | -707.3 | -47.0 | |
| 5.40 | -3.00 | 7.55 | -3.00 | 16.23 | 280.62 | -70.00 | 74.69 | 0.9370 | -249.7 | 999999 | |
| 2.44 | -3.00 | 3.40 | -3.00 | 15.62 | 280.73 | -69.89 | 75.34 | 0.9363 | -325.6 | 999999 | |
| 3.57 | -3.00 | 5.00 | -3.00 | 15.30 | 280.61 | -70.01 | 75.69 | 0.9370 | -400.8 | 999999 | |
| 8.53 | -3.00 | 12.07 | -3.00 | 14.88 | 280.38 | -70.24 | 76.14 | 0.9384 | -460.2 | 999999 | |
| 6.18 | 33.08 | 9.59 | 51.28 | 17.06 | 278.42 | -72.20 | 73.81 | 0.9492 | 536.0 | 395.6 | |
| 2.18 | -3.00 | 3.13 | -3.00 | 14.94 | 280.05 | -70.57 | 76.07 | 0.9403 | 159.0 | 999999 | |
| 0.00 | 5.14 | 0.00 | 10.22 | 15.52 | 274.06 | -76.56 | 75.35 | 0.9698 | 378.0 | 313.5 | |
| 0.87 | 29.86 | 1.90 | 65.49 | 15.77 | 272.74 | -77.88 | 75.05 | 0.9749 | 298.7 | -157.7 | |
| 5.75 | -11.00 | 12.26 | -11.00 | 15.30 | 273.05 | -77.57 | 75.54 | 0.9738 | 278.4 | 999999 | |
| 0.52 | -11.00 | 1.13 | -11.00 | 15.15 | 272.79 | -77.83 | 75.68 | 0.9748 | -159.2 | 999999 | |
| 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. | |