SDO HMI 2011-10-29 03:59:00 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 |
| 21.51 | 70.69 | 12.77 | 41.95 | 30.99 | 216.91 | -22.15 | 35.81 | 0.5545 | -970.2 | -526.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-29 03:59:00 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 |
| 21.51 | 66.27 | 12.77 | 39.27 | 30.92 | 217.02 | -22.04 | 35.77 | 0.5528 | -1063.7 | -525.2 | |
| 0.00 | 1.47 | 0.00 | 0.88 | 31.64 | 216.46 | -22.59 | 35.52 | 0.5652 | -522.0 | -452.5 | |
| 0.00 | 1.13 | 0.00 | 0.70 | 34.44 | 214.74 | -24.32 | 34.08 | 0.6084 | -762.0 | -642.0 | |
| 0.00 | 0.78 | 0.00 | 0.46 | 29.16 | 215.91 | -23.14 | 39.27 | 0.5443 | -721.0 | -545.7 | |
| 0.00 | 1.04 | 0.00 | 0.64 | 32.19 | 213.69 | -25.36 | 37.75 | 0.5944 | -682.0 | -540.8 | |
| 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. | |