SDO HMI 2014-03-28 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 |
| 0.00 | 9.72 | 0.00 | 6.35 | -11.43 | 84.14 | -41.02 | 99.74 | 0.6538 | 443.9 | 346.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 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 | 1.23 | 0.00 | 0.74 | -11.51 | 89.86 | -35.31 | 100.47 | 0.5781 | 679.0 | 483.4 | |
| 0.00 | 1.05 | 0.00 | 0.64 | -10.21 | 88.91 | -36.25 | 98.13 | 0.5901 | 711.0 | 599.3 | |
| 0.00 | 1.14 | 0.00 | 0.71 | -10.06 | 87.63 | -37.53 | 97.80 | 0.6077 | 431.0 | 385.1 | |
| 0.00 | 1.40 | 0.00 | 0.92 | -11.66 | 83.57 | -41.59 | 100.03 | 0.6625 | 366.0 | 317.4 | |
| 0.00 | 0.79 | 0.00 | 0.52 | -13.05 | 83.17 | -41.99 | 102.09 | 0.6688 | 546.0 | 383.8 | |
| 0.00 | 1.14 | 0.00 | 0.76 | -13.36 | 82.85 | -42.31 | 102.51 | 0.6732 | 740.0 | 571.2 | |
| 0.00 | 0.96 | 0.00 | 0.64 | -10.98 | 82.58 | -42.58 | 98.94 | 0.6748 | 468.0 | 441.5 | |
| 0.00 | 1.05 | 0.00 | 0.72 | -10.28 | 81.07 | -44.10 | 97.87 | 0.6935 | 623.0 | 503.8 | |
| 0.00 | 0.96 | 0.00 | 0.70 | -11.84 | 77.67 | -47.49 | 99.94 | 0.7348 | -569.0 | -548.8 | |
| 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. | |