SDO HMI 2014-03-04 15:00:28 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 | 4.41 | 0.00 | 2.69 | 20.50 | 107.79 | 22.96 | 321.23 | 0.5890 | 200.0 | 248.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 15:00:28 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 | 0.43 | 0.00 | 0.27 | 18.62 | 113.18 | 28.35 | 313.14 | 0.6190 | -564.0 | -522.4 | |
| 0.00 | 1.04 | 0.00 | 0.62 | 16.45 | 110.17 | 25.34 | 313.54 | 0.5684 | 560.0 | 424.9 | |
| 0.00 | 0.78 | 0.00 | 0.48 | 20.47 | 108.44 | 23.61 | 320.48 | 0.5920 | 588.0 | 522.6 | |
| 0.00 | 2.16 | 0.00 | 1.32 | 22.79 | 105.33 | 20.50 | 326.77 | 0.5915 | 216.0 | 224.0 | |
| 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. | |