| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.05 | 56.46 | 21.16 | 51.29 | 19.71 | 64.69 | 51.18 | 298.96 | 0.8397 | 136.1 | 183.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-15 16:58:57 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 |
| 7.62 | 11.74 | 7.65 | 11.78 | 18.97 | 68.96 | 55.45 | 296.40 | 0.8716 | -580.4 | -263.4 | |
| 0.00 | 1.11 | 0.00 | 1.11 | 19.44 | 68.42 | 54.91 | 297.10 | 0.8688 | -435.0 | -394.5 | |
| 0.00 | 2.14 | 0.00 | 2.05 | 18.93 | 67.25 | 53.74 | 297.00 | 0.8581 | -638.0 | -560.0 | |
| 0.00 | 0.86 | 0.00 | 0.82 | 19.23 | 67.34 | 53.83 | 297.29 | 0.8598 | -354.0 | -301.0 | |
| 3.26 | 5.48 | 2.96 | 4.97 | 19.00 | 65.00 | 51.49 | 297.99 | 0.8400 | 350.9 | 274.9 | |
| 0.00 | 4.37 | 0.00 | 3.87 | 19.92 | 63.46 | 49.95 | 299.69 | 0.8306 | 538.0 | 415.0 | |
| 6.34 | 18.25 | 5.50 | 15.80 | 19.91 | 62.62 | 49.11 | 300.06 | 0.8234 | 790.5 | 507.8 | |
| 0.00 | 1.29 | 0.00 | 1.16 | 21.86 | 63.35 | 49.84 | 301.86 | 0.8373 | -525.0 | -384.5 | |
| 5.83 | 8.74 | 5.05 | 7.59 | 20.29 | 62.44 | 48.93 | 300.56 | 0.8234 | 700.5 | 324.3 | |
| 0.00 | 1.37 | 0.00 | 1.20 | 21.67 | 62.04 | 48.53 | 302.28 | 0.8258 | 198.0 | 170.3 | |
| 0.00 | 1.11 | 0.00 | 0.94 | 20.87 | 60.55 | 47.04 | 302.13 | 0.8097 | 563.0 | 510.8 | |
| 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. | |