SDO HMI 2014-10-09 21:00:31 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 |
| 58.27 | 344.18 | 50.47 | 298.61 | -20.61 | 18.67 | -48.96 | 120.57 | 0.8220 | 904.3 | 213.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-09 21:00:31 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 |
| 0.00 | 2.02 | 0.00 | 1.65 | -19.56 | 20.95 | -46.68 | 120.46 | 0.7976 | 320.0 | 340.9 | |
| 2.37 | 332.95 | 1.98 | 289.14 | -20.44 | 20.22 | -47.41 | 121.11 | 0.8079 | 803.9 | 212.1 | |
| 4.29 | -2.00 | 3.65 | -2.00 | -20.54 | 19.51 | -48.12 | 120.87 | 0.8145 | 946.5 | 999999 | |
| 0.00 | 2.02 | 0.00 | 1.71 | -19.35 | 19.14 | -48.49 | 119.36 | 0.8129 | 121.0 | 134.8 | |
| 51.61 | -2.00 | 44.84 | -2.00 | -20.69 | 18.52 | -49.11 | 120.58 | 0.8236 | 986.9 | 999999 | |
| 0.00 | 4.82 | 0.00 | 4.00 | -17.76 | 19.36 | -48.27 | 117.65 | 0.8045 | 618.0 | 436.9 | |
| 0.00 | 1.14 | 0.00 | 1.07 | -23.46 | 16.40 | -51.23 | 122.65 | 0.8515 | 473.0 | 415.4 | |
| 0.00 | 1.23 | 0.00 | 1.04 | -16.84 | 18.07 | -49.57 | 116.01 | 0.8129 | -672.0 | -612.1 | |
| 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. | |