SDO HMI 2014-03-30 21:00:31 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 | 10.33 | 0.00 | 5.61 | 13.08 | 109.85 | 11.07 | 332.61 | 0.3957 | 585.0 | 489.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 21:00:31 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 | 0.88 | 0.00 | 0.52 | 14.71 | 124.77 | 25.99 | 309.75 | 0.5535 | -651.0 | -503.3 | |
| 0.00 | 1.05 | 0.00 | 0.57 | 7.99 | 117.00 | 18.22 | 308.52 | 0.3975 | 772.0 | 601.7 | |
| 0.00 | 0.96 | 0.00 | 0.52 | 9.53 | 113.98 | 15.19 | 316.69 | 0.3785 | 743.0 | 484.6 | |
| 0.00 | 1.05 | 0.00 | 0.55 | 9.26 | 109.54 | 10.76 | 325.85 | 0.3297 | 679.0 | 530.3 | |
| 0.00 | 1.66 | 0.00 | 0.93 | 19.11 | 109.85 | 11.07 | 337.23 | 0.4707 | 733.0 | 559.1 | |
| 0.00 | 1.31 | 0.00 | 0.74 | 20.34 | 109.22 | 10.44 | 339.38 | 0.4844 | 827.0 | 639.1 | |
| 0.00 | 2.54 | 0.00 | 1.33 | 11.26 | 103.09 | 4.30 | 346.52 | 0.3169 | 795.0 | 647.4 | |
| 0.00 | 0.88 | 0.00 | 0.45 | 7.36 | 100.16 | 1.38 | 354.36 | 0.2438 | 782.0 | 593.2 | |
| 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. | |