SDO HMI 2014-05-31 03:00:39 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 |
| 3.52 | 11.27 | 2.65 | 8.12 | -19.27 | 52.57 | 43.18 | 243.44 | 0.7232 | 486.3 | 395.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-31 03:00:39 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 |
| 3.52 | 5.33 | 2.65 | 4.01 | -19.81 | 55.35 | 45.96 | 244.00 | 0.7547 | 644.1 | 449.0 | |
| 0.00 | 0.54 | 0.00 | 0.40 | -19.47 | 53.80 | 44.41 | 243.85 | 0.7373 | 489.0 | 397.5 | |
| 0.00 | 1.26 | 0.00 | 0.91 | -18.83 | 52.82 | 43.44 | 244.29 | 0.7245 | 646.0 | 566.5 | |
| 0.00 | 1.26 | 0.00 | 0.86 | -13.73 | 50.77 | 41.38 | 250.52 | 0.6835 | 719.0 | 605.4 | |
| 0.00 | 0.99 | 0.00 | 0.69 | -19.85 | 50.44 | 41.05 | 241.91 | 0.7025 | 554.0 | 458.2 | |
| 0.00 | 0.90 | 0.00 | 0.63 | -19.98 | 50.31 | 40.92 | 241.68 | 0.7016 | 653.0 | 518.8 | |
| 0.00 | 0.99 | 0.00 | 0.62 | -22.57 | 40.55 | 31.16 | 232.03 | 0.6083 | -561.0 | -456.5 | |
| 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. | |