SDO HMI 2011-01-04 16:58:55 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 |
| 9.18 | 30.47 | 11.55 | 37.54 | 34.25 | 264.50 | 57.96 | 310.07 | 0.9159 | 57.2 | 12.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-04 16:58:55 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 |
| 2.21 | 5.35 | 3.24 | 7.87 | 33.40 | 270.16 | 63.62 | 307.38 | 0.9427 | -309.9 | -119.5 | |
| 1.36 | 2.63 | 1.76 | 3.41 | 33.70 | 266.53 | 60.00 | 308.77 | 0.9257 | -319.6 | -375.5 | |
| 0.00 | 1.78 | 0.00 | 2.18 | 33.15 | 264.94 | 58.40 | 308.72 | 0.9158 | 204.0 | 87.1 | |
| 2.38 | 6.20 | 2.93 | 7.70 | 33.41 | 265.16 | 58.62 | 308.92 | 0.9177 | -371.4 | -107.8 | |
| 0.00 | 3.14 | 0.00 | 3.64 | 34.58 | 262.35 | 55.81 | 311.09 | 0.9055 | -401.0 | -359.7 | |
| 0.00 | 2.04 | 0.00 | 2.31 | 35.11 | 261.24 | 54.70 | 312.05 | 0.9009 | 479.0 | 330.1 | |
| 0.00 | 0.93 | 0.00 | 1.05 | 35.39 | 260.96 | 54.42 | 312.44 | 0.9003 | 462.0 | 354.4 | |
| 0.00 | 1.10 | 0.00 | 1.26 | 35.81 | 261.00 | 54.46 | 312.84 | 0.9018 | 211.0 | 154.2 | |
| 3.23 | 4.42 | 3.62 | 4.95 | 35.53 | 260.66 | 54.12 | 312.69 | 0.8990 | 540.6 | 542.6 | |
| 0.00 | 1.10 | 0.00 | 1.22 | 35.90 | 259.98 | 53.44 | 313.34 | 0.8965 | 280.0 | 284.5 | |
| 0.00 | 1.78 | 0.00 | 1.95 | 35.62 | 259.64 | 53.11 | 313.19 | 0.8936 | 523.0 | 374.1 | |
| 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. | |