SDO HMI 2014-08-04 23:00:39 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 | 6.77 | 0.00 | 4.51 | 13.25 | 258.74 | 40.55 | 284.56 | 0.6519 | 303.4 | 233.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 23:00:39 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 | 0.90 | 0.00 | 0.74 | 13.90 | 271.04 | 52.85 | 282.89 | 0.7959 | -434.0 | -379.8 | |
| 0.00 | 0.81 | 0.00 | 0.64 | 16.48 | 268.86 | 50.67 | 286.38 | 0.7754 | -466.0 | -392.6 | |
| 0.00 | 0.81 | 0.00 | 0.53 | 7.15 | 259.18 | 40.99 | 273.94 | 0.6547 | 598.0 | 479.3 | |
| 0.00 | 0.90 | 0.00 | 0.58 | 6.47 | 258.43 | 40.23 | 272.86 | 0.6448 | 346.0 | 357.0 | |
| 0.00 | 1.45 | 0.00 | 0.94 | 10.60 | 258.43 | 40.24 | 279.28 | 0.6457 | 544.0 | 400.2 | |
| 0.00 | 0.54 | 0.00 | 0.31 | 19.15 | 244.76 | 26.57 | 299.32 | 0.4865 | 649.0 | 517.5 | |
| 0.00 | 1.36 | 0.00 | 0.77 | 20.08 | 244.46 | 26.26 | 301.30 | 0.4883 | 887.0 | 757.3 | |
| 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. | |