SDO HMI 2014-04-01 05:00:32 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 |
| 3.34 | 7.02 | 3.16 | 6.62 | 17.44 | 27.37 | -53.82 | 64.83 | 0.8529 | 201.0 | 39.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 05:00:32 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 | 0.53 | 0.00 | 0.48 | 15.85 | 28.37 | -52.82 | 66.23 | 0.8396 | -344.0 | -320.3 | |
| 3.34 | 4.83 | 3.16 | 4.57 | 17.75 | 27.33 | -53.86 | 64.50 | 0.8542 | 476.9 | 315.2 | |
| 0.00 | 0.26 | 0.00 | 0.25 | 17.62 | 27.01 | -54.18 | 64.76 | 0.8564 | 307.0 | 341.7 | |
| 0.00 | 1.40 | 0.00 | 1.32 | 16.92 | 27.20 | -53.99 | 65.46 | 0.8528 | -232.0 | -181.1 | |
| 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. | |