SDO HMI 2011-05-04 02:59:07 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 |
| 12.86 | 26.51 | 10.82 | 21.80 | -17.17 | 124.66 | 52.26 | 251.30 | 0.7987 | -17.5 | -139.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-04 02:59:07 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 |
| 7.41 | 10.27 | 6.58 | 9.11 | -16.89 | 128.06 | 55.65 | 252.23 | 0.8317 | 507.7 | 358.9 | |
| 0.00 | 0.89 | 0.00 | 0.75 | -17.97 | 125.62 | 53.22 | 250.55 | 0.8102 | 423.0 | 394.1 | |
| 0.00 | 1.61 | 0.00 | 1.29 | -17.65 | 123.36 | 50.96 | 250.53 | 0.7872 | 517.0 | 432.6 | |
| 4.11 | 7.50 | 3.21 | 5.85 | -16.91 | 122.33 | 49.93 | 251.26 | 0.7754 | -461.6 | -508.3 | |
| 0.00 | 1.16 | 0.00 | 0.90 | -16.93 | 121.95 | 49.54 | 251.16 | 0.7714 | -643.0 | -519.0 | |
| 0.00 | 1.16 | 0.00 | 0.90 | -17.04 | 121.74 | 49.34 | 250.98 | 0.7694 | -671.0 | -523.5 | |
| 1.34 | 2.23 | 1.03 | 1.71 | -17.21 | 121.36 | 48.96 | 250.68 | 0.7658 | -605.9 | -505.7 | |
| 0.00 | 0.89 | 0.00 | 0.69 | -19.54 | 120.89 | 48.49 | 247.58 | 0.7657 | -496.0 | -474.4 | |
| 0.00 | 0.80 | 0.00 | 0.60 | -19.73 | 119.53 | 47.12 | 246.97 | 0.7518 | -659.0 | -566.4 | |
| 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. | |