SDO HMI 2011-04-29 03:59:07 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 | 4.09 | 0.00 | 2.76 | 16.36 | 175.33 | 37.39 | 300.35 | 0.6772 | 84.4 | -1.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-29 03:59:07 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 | 0.98 | 0.00 | 0.70 | 15.27 | 179.65 | 41.72 | 296.34 | 0.7186 | -674.0 | -529.8 | |
| 0.00 | 0.62 | 0.00 | 0.42 | 15.42 | 176.44 | 38.51 | 298.29 | 0.6839 | 320.0 | 325.7 | |
| 0.00 | 0.53 | 0.00 | 0.36 | 16.97 | 175.12 | 37.18 | 301.15 | 0.6777 | 631.0 | 498.0 | |
| 0.00 | 0.89 | 0.00 | 0.59 | 15.23 | 174.42 | 36.49 | 299.25 | 0.6600 | 729.0 | 609.3 | |
| 0.00 | 1.07 | 0.00 | 0.69 | 18.67 | 171.15 | 33.21 | 306.21 | 0.6454 | -584.0 | -446.2 | |
| 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. | |