SDO HMI 2011-12-07 21:58:56 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 |
| 24.38 | 51.32 | 26.72 | 53.48 | 17.16 | 135.02 | 59.96 | 289.83 | 0.8766 | 156.0 | 23.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-07 21:58:56 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 |
| 3.41 | 16.71 | 4.05 | 19.85 | 16.77 | 139.22 | 64.15 | 288.48 | 0.9103 | -270.5 | -172.4 | |
| 6.05 | -1.00 | 7.19 | -1.00 | 17.20 | 139.21 | 64.14 | 288.95 | 0.9107 | -322.5 | 999999 | |
| 0.00 | 1.11 | 0.00 | 1.28 | 16.55 | 138.52 | 63.46 | 288.35 | 0.9053 | -198.0 | -179.8 | |
| 9.38 | 20.46 | 10.20 | 22.17 | 16.34 | 136.78 | 61.71 | 288.38 | 0.8923 | 491.9 | 176.3 | |
| 3.41 | -4.00 | 3.66 | -4.00 | 16.64 | 136.29 | 61.23 | 288.80 | 0.8891 | 486.6 | 999999 | |
| 0.00 | 1.70 | 0.00 | 1.42 | 18.44 | 126.40 | 51.34 | 293.08 | 0.8074 | -540.0 | -438.0 | |
| 0.00 | 2.81 | 0.00 | 2.29 | 19.66 | 124.79 | 49.73 | 295.04 | 0.7953 | -640.0 | -517.0 | |
| 2.13 | 5.03 | 1.62 | 3.82 | 18.19 | 121.73 | 46.67 | 294.26 | 0.7603 | 648.9 | 632.8 | |
| 0.00 | 0.94 | 0.00 | 0.71 | 17.94 | 121.46 | 46.40 | 294.04 | 0.7567 | 682.0 | 564.0 | |
| 0.00 | 0.43 | 0.00 | 0.33 | 20.16 | 121.32 | 46.25 | 296.89 | 0.7627 | 404.0 | 336.6 | |
| 0.00 | 0.85 | 0.00 | 0.64 | 20.95 | 120.58 | 45.51 | 298.17 | 0.7581 | 608.0 | 503.9 | |
| 0.00 | 1.28 | 0.00 | 0.97 | 21.36 | 120.70 | 45.63 | 298.63 | 0.7609 | 508.0 | 461.9 | |
| 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. | |