SDO HMI 2014-09-28 12:00:33 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 | 9.09 | 0.00 | 4.59 | 7.01 | 207.10 | -10.63 | 88.64 | 0.1846 | 471.8 | 384.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-28 12:00:33 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 | 1.94 | 0.00 | 0.98 | 6.64 | 207.81 | -9.92 | 90.52 | 0.1719 | -898.0 | -709.0 | |
| 0.00 | 2.74 | 0.00 | 1.38 | 6.03 | 207.70 | -10.03 | 93.97 | 0.1745 | 1009.0 | 803.8 | |
| 0.00 | 1.15 | 0.00 | 0.58 | 7.00 | 206.73 | -11.01 | 88.40 | 0.1904 | 774.0 | 575.8 | |
| 0.00 | 2.47 | 0.00 | 1.25 | 7.93 | 206.40 | -11.34 | 83.69 | 0.1968 | 752.0 | 638.8 | |
| 0.00 | 0.79 | 0.00 | 0.40 | 8.40 | 206.04 | -11.69 | 81.51 | 0.2036 | 722.0 | 540.9 | |
| 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. | |