SDO HMI 2011-05-01 15:59:07 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 |
| 13.20 | 27.01 | 14.23 | 28.89 | 17.19 | 45.47 | -59.45 | 68.13 | 0.8881 | -85.8 | 37.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-01 15:59:07 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 |
| 4.55 | 9.90 | 4.65 | 10.09 | 17.88 | 47.19 | -57.73 | 66.92 | 0.8767 | -479.9 | 19.6 | |
| 0.00 | 0.71 | 0.00 | 0.73 | 17.53 | 47.13 | -57.79 | 67.32 | 0.8764 | 294.0 | 280.9 | |
| 0.00 | 0.53 | 0.00 | 0.56 | 16.65 | 45.87 | -59.05 | 68.64 | 0.8842 | -345.0 | -399.0 | |
| 2.67 | 6.06 | 2.82 | 6.42 | 16.43 | 45.73 | -59.19 | 68.91 | 0.8848 | -425.8 | -361.6 | |
| 0.00 | 1.52 | 0.00 | 1.63 | 16.75 | 45.26 | -59.66 | 68.69 | 0.8890 | 260.0 | 178.7 | |
| 1.25 | -4.00 | 1.34 | -4.00 | 16.53 | 45.24 | -59.67 | 68.93 | 0.8886 | -197.4 | 999999 | |
| 1.16 | 1.34 | 1.28 | 1.48 | 16.59 | 44.32 | -60.60 | 69.11 | 0.8956 | 544.2 | 484.5 | |
| 0.00 | 1.25 | 0.00 | 1.37 | 16.11 | 44.31 | -60.60 | 69.63 | 0.8947 | 445.0 | 375.9 | |
| 1.52 | 2.67 | 1.74 | 3.06 | 17.01 | 43.30 | -61.62 | 68.90 | 0.9036 | 178.2 | 191.7 | |
| 2.05 | 3.03 | 2.40 | 3.55 | 17.61 | 42.87 | -62.04 | 68.35 | 0.9075 | 196.8 | 102.1 | |
| 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. | |