SDO HMI 2011-12-17 00:58:55 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 |
| 10.81 | 68.24 | 7.49 | 47.05 | 8.36 | 357.90 | 43.08 | 283.26 | 0.6964 | -367.8 | -337.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-17 00:58:55 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 |
| 5.45 | 60.58 | 3.78 | 42.07 | 8.28 | 358.47 | 43.65 | 283.01 | 0.7034 | -915.1 | -405.4 | |
| 5.36 | -1.00 | 3.71 | -1.00 | 8.52 | 358.22 | 43.39 | 283.40 | 0.7008 | -1006.4 | 999999 | |
| 0.00 | 1.28 | 0.00 | 0.86 | 6.32 | 357.09 | 42.27 | 280.53 | 0.6823 | -719.0 | -614.1 | |
| 0.00 | 1.36 | 0.00 | 0.92 | 10.53 | 356.33 | 41.50 | 286.82 | 0.6830 | -676.0 | -473.2 | |
| 0.00 | 1.02 | 0.00 | 0.68 | 9.22 | 355.18 | 40.35 | 285.29 | 0.6649 | 626.0 | 509.0 | |
| 0.00 | 0.34 | 0.00 | 0.22 | 9.39 | 353.87 | 39.05 | 285.97 | 0.6488 | 605.0 | 635.2 | |
| 0.00 | 1.19 | 0.00 | 0.77 | 8.69 | 353.40 | 38.57 | 285.07 | 0.6407 | 716.0 | 574.6 | |
| 0.00 | 0.60 | 0.00 | 0.38 | 8.68 | 352.79 | 37.96 | 285.27 | 0.6327 | 642.0 | 569.0 | |
| 0.00 | 1.87 | 0.00 | 1.15 | 5.50 | 350.59 | 35.76 | 280.84 | 0.5946 | 670.0 | 434.3 | |
| 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. | |