SDO HMI 2011-11-17 00:58:58 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 | 10.38 | 0.00 | 5.62 | 10.12 | 12.87 | 22.68 | 289.37 | 0.4049 | -318.0 | -380.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-17 00:58:58 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 | 1.03 | 0.00 | 0.56 | 8.25 | 14.85 | 24.66 | 283.81 | 0.4271 | 807.0 | 620.1 | |
| 0.00 | 0.77 | 0.00 | 0.43 | 11.21 | 14.82 | 24.63 | 290.49 | 0.4383 | -773.0 | -698.6 | |
| 0.00 | 0.77 | 0.00 | 0.42 | 5.51 | 13.69 | 23.50 | 277.66 | 0.4022 | 635.0 | 511.3 | |
| 0.00 | 1.20 | 0.00 | 0.65 | 11.16 | 13.03 | 22.84 | 291.65 | 0.4115 | -861.0 | -698.1 | |
| 0.00 | 1.55 | 0.00 | 0.84 | 10.86 | 12.94 | 22.75 | 291.03 | 0.4087 | -704.0 | -619.7 | |
| 0.00 | 2.23 | 0.00 | 1.20 | 10.93 | 12.19 | 22.01 | 291.78 | 0.3979 | -469.0 | -418.1 | |
| 0.00 | 2.83 | 0.00 | 1.52 | 10.28 | 11.79 | 21.60 | 290.53 | 0.3885 | -861.0 | -607.5 | |
| 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. | |