SDO HMI 2014-03-20 16:00:30 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 |
| 58.72 | 220.05 | 69.20 | 254.43 | -13.20 | 167.97 | -65.45 | 101.35 | 0.9044 | 399.9 | 50.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-20 16:00:30 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 |
| 17.68 | 127.01 | 19.11 | 138.01 | -14.57 | 169.86 | -63.56 | 102.80 | 0.8906 | 672.4 | 187.4 | |
| 5.58 | -1.00 | 6.18 | -1.00 | -14.58 | 169.07 | -64.35 | 102.82 | 0.8966 | 147.6 | 999999 | |
| 0.00 | 0.87 | 0.00 | 0.98 | -15.16 | 168.52 | -64.90 | 103.48 | 0.9006 | -17.0 | -19.1 | |
| 0.00 | 0.78 | 0.00 | 0.87 | -14.08 | 169.05 | -64.37 | 102.27 | 0.8968 | 177.0 | 133.4 | |
| 17.95 | 55.06 | 21.37 | 65.70 | -11.95 | 167.17 | -66.25 | 99.96 | 0.9109 | 409.7 | -146.2 | |
| 6.53 | -5.00 | 7.79 | -5.00 | -11.61 | 167.10 | -66.31 | 99.59 | 0.9115 | 423.0 | 999999 | |
| 0.70 | 13.33 | 0.90 | 17.51 | -12.22 | 164.94 | -68.47 | 100.36 | 0.9259 | 214.1 | -382.2 | |
| 1.39 | -7.00 | 1.83 | -7.00 | -12.54 | 164.58 | -68.83 | 100.73 | 0.9281 | -454.8 | 999999 | |
| 0.00 | 0.52 | 0.00 | 0.69 | -10.61 | 164.77 | -68.65 | 98.63 | 0.9276 | 310.0 | 280.3 | |
| 0.00 | 1.83 | 0.00 | 2.40 | -10.28 | 164.76 | -68.66 | 98.27 | 0.9277 | 519.0 | 469.0 | |
| 8.89 | 19.69 | 12.02 | 26.70 | -9.99 | 164.12 | -69.29 | 98.01 | 0.9319 | 326.6 | -104.2 | |
| 0.00 | 0.96 | 0.00 | 1.57 | -15.75 | 159.83 | -73.58 | 104.35 | 0.9543 | -416.0 | -381.5 | |
| 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. | |