| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.62 | 0.00 | 3.34 | 19.59 | 111.57 | 20.72 | 323.16 | 0.5569 | 370.2 | 81.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 04:00:28 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 | 2.51 | 0.00 | 1.53 | 21.03 | 113.42 | 22.57 | 322.38 | 0.5891 | -664.0 | -448.7 | |
| 0.00 | 0.95 | 0.00 | 0.56 | 18.85 | 110.23 | 19.38 | 324.06 | 0.5371 | 576.0 | 456.7 | |
| 0.00 | 1.04 | 0.00 | 0.60 | 18.41 | 110.01 | 19.16 | 323.86 | 0.5301 | 658.0 | 542.2 | |
| 0.00 | 0.86 | 0.00 | 0.50 | 18.30 | 109.86 | 19.01 | 323.95 | 0.5276 | 676.0 | 601.2 | |
| 0.00 | 0.26 | 0.00 | 0.15 | 16.69 | 109.62 | 18.77 | 322.34 | 0.5066 | 605.0 | 510.0 | |
| 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. | |