SDO HMI 2014-03-31 15:00:32 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 | 5.44 | 0.00 | 3.20 | 21.25 | 100.43 | 11.53 | 339.53 | 0.5395 | 683.0 | 576.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 15:00:32 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 | 1.58 | 0.00 | 0.94 | 19.91 | 110.24 | 21.34 | 322.04 | 0.5583 | 759.0 | 619.1 | |
| 0.00 | 0.88 | 0.00 | 0.52 | 19.17 | 109.93 | 21.03 | 321.56 | 0.5473 | 658.0 | 580.8 | |
| 0.00 | 0.96 | 0.00 | 0.58 | 20.82 | 109.55 | 20.65 | 323.98 | 0.5625 | 646.0 | 509.1 | |
| 0.00 | 2.02 | 0.00 | 1.16 | 23.47 | 83.65 | -5.25 | 9.53 | 0.5092 | 669.0 | 572.3 | |
| 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. | |