SDO HMI 2014-05-20 12:00:38 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 |
| 5.76 | 14.67 | 3.42 | 8.63 | 9.78 | 180.44 | 30.45 | 291.89 | 0.5410 | -220.8 | -119.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 12:00:38 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 |
| 2.07 | 3.24 | 1.23 | 1.92 | 8.98 | 181.62 | 31.63 | 289.75 | 0.5525 | -893.3 | -759.8 | |
| 3.69 | 5.76 | 2.19 | 3.42 | 9.22 | 181.50 | 31.51 | 290.24 | 0.5520 | -1026.3 | -730.7 | |
| 0.00 | 1.08 | 0.00 | 0.63 | 8.67 | 179.94 | 29.95 | 290.16 | 0.5279 | -820.0 | -686.4 | |
| 0.00 | 0.90 | 0.00 | 0.52 | 6.62 | 179.26 | 29.27 | 286.77 | 0.5092 | 626.0 | 555.6 | |
| 0.00 | 0.81 | 0.00 | 0.47 | 11.53 | 178.68 | 28.69 | 296.11 | 0.5259 | 598.0 | 442.2 | |
| 0.00 | 1.71 | 0.00 | 0.99 | 11.55 | 178.22 | 28.23 | 296.50 | 0.5199 | 375.0 | 396.0 | |
| 0.00 | 1.17 | 0.00 | 0.68 | 14.53 | 177.57 | 27.58 | 302.12 | 0.5313 | 708.0 | 502.9 | |
| 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. | |