SDO HMI 2014-08-15 21:00:38 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.36 | 11.61 | 0.30 | 8.89 | -5.40 | 25.69 | -48.18 | 102.98 | 0.7619 | 291.0 | 182.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-15 21:00:38 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 | 0.90 | 0.00 | 0.63 | -4.99 | 30.18 | -43.68 | 103.89 | 0.7110 | 374.0 | 371.4 | |
| 0.00 | 0.72 | 0.00 | 0.51 | -5.06 | 29.37 | -44.50 | 103.69 | 0.7208 | 613.0 | 553.0 | |
| 0.00 | 0.54 | 0.00 | 0.39 | -4.70 | 29.23 | -44.64 | 103.16 | 0.7214 | 836.0 | 658.3 | |
| 0.00 | 1.80 | 0.00 | 1.29 | -5.18 | 29.01 | -44.85 | 103.73 | 0.7254 | 607.0 | 459.1 | |
| 0.00 | 1.71 | 0.00 | 1.23 | -4.90 | 29.04 | -44.83 | 103.37 | 0.7242 | 564.0 | 476.8 | |
| 0.00 | 1.26 | 0.00 | 0.92 | -4.33 | 27.65 | -46.22 | 102.17 | 0.7387 | 626.0 | 541.3 | |
| 0.36 | 1.98 | 0.30 | 1.64 | -7.01 | 22.25 | -51.62 | 103.92 | 0.8038 | -606.2 | -539.5 | |
| 0.00 | 1.35 | 0.00 | 1.12 | -3.53 | 21.47 | -52.39 | 99.47 | 0.8038 | -531.0 | -427.2 | |
| 0.00 | 1.35 | 0.00 | 1.16 | -7.14 | 20.56 | -53.31 | 103.59 | 0.8207 | 405.0 | 273.1 | |
| 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. | |