SDO HMI 2011-10-17 03:59:02 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 |
| 8.81 | 24.44 | 10.44 | 29.06 | 23.98 | 331.82 | -65.50 | 66.22 | 0.9095 | -212.6 | -195.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 03:59:02 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 |
| 2.01 | 3.06 | 2.22 | 3.38 | 23.45 | 333.80 | -63.52 | 66.62 | 0.8965 | -532.7 | -462.8 | |
| 0.00 | 1.92 | 0.00 | 2.27 | 24.75 | 332.04 | -65.28 | 65.35 | 0.9094 | -222.0 | -163.5 | |
| 3.14 | 6.02 | 3.53 | 6.79 | 23.22 | 333.33 | -63.99 | 66.93 | 0.8996 | -456.5 | -440.5 | |
| 0.00 | 0.70 | 0.00 | 1.02 | 28.24 | 326.80 | -70.52 | 62.01 | 0.9420 | 338.0 | 325.1 | |
| 1.48 | 6.37 | 1.68 | 7.26 | 22.77 | 333.05 | -64.27 | 67.44 | 0.9013 | -596.6 | -347.8 | |
| 0.52 | 1.66 | 0.61 | 1.94 | 23.50 | 332.23 | -65.09 | 66.70 | 0.9073 | -301.8 | -232.6 | |
| 0.00 | 1.05 | 0.00 | 1.19 | 22.58 | 333.07 | -64.26 | 67.65 | 0.9010 | -499.0 | -411.0 | |
| 0.00 | 0.52 | 0.00 | 0.66 | 24.29 | 330.21 | -67.11 | 66.00 | 0.9208 | 509.0 | 459.5 | |
| 1.66 | 3.14 | 2.40 | 4.55 | 26.62 | 326.87 | -70.45 | 63.73 | 0.9410 | 327.1 | 375.5 | |
| 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. | |