SDO HMI 2014-09-22 21:00:34 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 | 4.95 | 0.00 | 3.24 | -7.67 | 330.13 | 38.17 | 249.45 | 0.6550 | 345.0 | 99.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-22 21:00:34 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 | 0.71 | 0.00 | 0.50 | -7.48 | 335.12 | 43.17 | 252.19 | 0.7147 | 600.0 | 469.2 | |
| 0.00 | 0.97 | 0.00 | 0.66 | -8.68 | 332.53 | 40.57 | 249.38 | 0.6893 | 528.0 | 374.0 | |
| 0.00 | 1.06 | 0.00 | 0.70 | -7.12 | 331.20 | 39.24 | 250.91 | 0.6665 | 711.0 | 600.1 | |
| 0.00 | 0.35 | 0.00 | 0.23 | -7.85 | 331.04 | 39.08 | 249.79 | 0.6678 | 628.0 | 652.5 | |
| 0.00 | 1.86 | 0.00 | 1.15 | -7.48 | 325.74 | 33.79 | 247.34 | 0.5997 | -742.0 | -641.4 | |
| 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. | |