SDO HMI 2011-10-08 19:59:02 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 |
| 20.07 | 116.83 | 12.57 | 73.17 | -11.23 | 180.74 | 33.48 | 242.32 | 0.6132 | 771.9 | 308.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-08 19:59:02 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 |
| 20.07 | 111.66 | 12.57 | 70.03 | -11.20 | 180.87 | 33.61 | 242.47 | 0.6146 | 1008.8 | 323.0 | |
| 0.00 | 2.45 | 0.00 | 1.52 | -10.71 | 180.11 | 32.85 | 242.65 | 0.6023 | 668.0 | 670.3 | |
| 0.00 | 1.23 | 0.00 | 0.73 | -12.39 | 176.04 | 28.78 | 236.81 | 0.5640 | -669.0 | -531.0 | |
| 0.00 | 1.49 | 0.00 | 0.89 | -13.54 | 175.17 | 27.91 | 234.27 | 0.5628 | -661.0 | -548.6 | |
| 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. | |