SDO HMI 2011-12-13 02:58:55 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 |
| 10.29 | 37.97 | 18.97 | 70.36 | -18.58 | 80.16 | 73.73 | 250.85 | 0.9642 | 309.4 | 213.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-13 02:58:55 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 |
| 0.85 | 2.04 | 1.88 | 4.51 | -18.44 | 82.99 | 76.56 | 251.20 | 0.9756 | 151.8 | 167.0 | |
| 0.00 | 1.36 | 0.00 | 3.04 | -18.69 | 83.07 | 76.64 | 250.95 | 0.9760 | 100.0 | 63.9 | |
| 0.00 | 2.04 | 0.00 | 3.82 | -16.82 | 80.49 | 74.06 | 252.71 | 0.9652 | 270.0 | 256.5 | |
| 0.00 | 1.45 | 0.00 | 2.88 | -19.05 | 81.36 | 74.93 | 250.47 | 0.9696 | 159.0 | 180.3 | |
| 4.00 | 27.42 | 7.24 | 49.47 | -18.38 | 79.85 | 73.42 | 251.04 | 0.9629 | 603.2 | 250.0 | |
| 1.53 | 2.55 | 2.90 | 4.84 | -19.37 | 80.58 | 74.15 | 250.08 | 0.9665 | 253.8 | 155.9 | |
| 2.04 | -5.00 | 3.66 | -5.00 | -18.72 | 79.69 | 73.26 | 250.67 | 0.9623 | 633.4 | 999999 | |
| 1.87 | -5.00 | 3.29 | -5.00 | -18.92 | 79.25 | 72.82 | 250.44 | 0.9604 | -247.0 | 999999 | |
| 0.00 | 1.11 | 0.00 | 1.80 | -19.43 | 77.75 | 71.32 | 249.76 | 0.9535 | -317.0 | -151.5 | |
| 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. | |