SDO HMI 2011-12-11 07:58:55 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 |
| 23.35 | 144.51 | 14.29 | 88.71 | 18.16 | 61.68 | 31.62 | 302.50 | 0.5927 | -1100.1 | -377.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-11 07:58:55 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 | 1.11 | 0.00 | 0.73 | 16.70 | 68.08 | 38.03 | 296.37 | 0.6609 | -620.0 | -549.5 | |
| 0.00 | 0.68 | 0.00 | 0.45 | 20.47 | 66.86 | 36.80 | 302.31 | 0.6664 | -647.0 | -563.0 | |
| 0.00 | 2.73 | 0.00 | 1.81 | 21.17 | 66.66 | 36.60 | 303.37 | 0.6682 | -657.0 | -484.2 | |
| 0.00 | 1.19 | 0.00 | 0.79 | 21.55 | 66.73 | 36.68 | 303.84 | 0.6712 | -556.0 | -451.2 | |
| 23.35 | 138.80 | 14.29 | 84.93 | 18.06 | 61.44 | 31.38 | 302.52 | 0.5894 | -1234.5 | -370.6 | |
| 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. | |