SDO HMI 2014-03-31 21:00:32 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 | 5.36 | 0.00 | 3.14 | 20.47 | 96.91 | 11.32 | 339.20 | 0.5319 | 418.6 | 460.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 21:00:32 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 | 0.53 | 0.00 | 0.33 | 14.96 | 115.67 | 30.08 | 306.03 | 0.6010 | -543.0 | -488.3 | |
| 0.00 | 1.32 | 0.00 | 0.80 | 19.47 | 109.79 | 24.20 | 318.02 | 0.5801 | 728.0 | 651.1 | |
| 0.00 | 0.88 | 0.00 | 0.50 | 16.14 | 103.90 | 18.30 | 321.59 | 0.4875 | 609.0 | 505.3 | |
| 0.00 | 1.67 | 0.00 | 0.96 | 23.64 | 83.74 | -1.85 | 3.36 | 0.5061 | 613.0 | 569.4 | |
| 0.00 | 0.96 | 0.00 | 0.55 | 23.61 | 83.55 | -2.05 | 3.72 | 0.5058 | 686.0 | 516.8 | |
| 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. | |