SDO HMI 2012-05-09 11:59:08 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 |
| 0.00 | 9.59 | 0.00 | 5.20 | 16.93 | 224.35 | 13.76 | 326.41 | 0.4155 | 472.5 | 511.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-09 11:59:08 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 | 0.81 | 0.00 | 0.44 | 13.48 | 229.28 | 18.70 | 312.40 | 0.4239 | -809.0 | -682.4 | |
| 0.00 | 2.15 | 0.00 | 1.16 | 15.17 | 226.02 | 15.43 | 320.70 | 0.4071 | 749.0 | 587.9 | |
| 0.00 | 0.90 | 0.00 | 0.49 | 18.97 | 223.67 | 13.08 | 330.39 | 0.4350 | 368.0 | 335.0 | |
| 0.00 | 1.70 | 0.00 | 0.92 | 17.47 | 223.29 | 12.70 | 329.23 | 0.4117 | 855.0 | 698.8 | |
| 0.00 | 2.60 | 0.00 | 1.41 | 17.67 | 223.21 | 12.62 | 329.64 | 0.4137 | 944.0 | 781.4 | |
| 0.00 | 1.43 | 0.00 | 0.78 | 18.25 | 222.83 | 12.24 | 331.12 | 0.4186 | 728.0 | 473.2 | |
| 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. | |