SDO HMI 2014-09-17 11:00:35 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 |
| 18.02 | 107.44 | 30.83 | 186.26 | 7.78 | 289.44 | -74.03 | 83.99 | 0.9591 | -248.8 | -56.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-17 11:00:35 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 |
| 7.01 | 58.78 | 12.11 | 103.37 | 9.97 | 289.24 | -74.23 | 81.69 | 0.9592 | -399.3 | -56.3 | |
| 3.20 | -1.00 | 5.69 | -1.00 | 10.05 | 288.60 | -74.87 | 81.55 | 0.9622 | 61.4 | 999999 | |
| 7.81 | 46.97 | 13.03 | 78.65 | 5.02 | 290.26 | -73.21 | 86.94 | 0.9564 | -259.5 | -57.8 | |
| 0.00 | 1.69 | 0.00 | 4.24 | 5.09 | 284.28 | -79.19 | 86.22 | 0.9814 | -53.0 | -45.8 | |
| 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. | |