| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.62 | 7.38 | 1.07 | 4.81 | 9.07 | 180.99 | 39.30 | 286.41 | 0.6540 | -397.7 | -384.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-21 03:00:38 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 |
| 0.00 | 0.27 | 0.00 | 0.18 | 10.00 | 182.90 | 41.20 | 287.07 | 0.6809 | -458.0 | -412.3 | |
| 0.00 | 1.53 | 0.00 | 1.01 | 8.96 | 181.93 | 40.24 | 285.90 | 0.6657 | -802.0 | -662.4 | |
| 1.62 | 3.15 | 1.07 | 2.08 | 9.17 | 181.76 | 40.06 | 286.27 | 0.6642 | -714.1 | -588.7 | |
| 0.00 | 1.26 | 0.00 | 0.81 | 9.29 | 180.10 | 38.41 | 287.06 | 0.6436 | -666.0 | -556.7 | |
| 0.00 | 1.17 | 0.00 | 0.73 | 8.47 | 178.03 | 36.33 | 286.62 | 0.6138 | 674.0 | 480.2 | |
| 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. | |