SDO HMI 2014-08-04 17:00:39 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 |
| 0.63 | 10.30 | 0.33 | 5.31 | 5.82 | 206.15 | -15.37 | 88.57 | 0.2650 | 261.2 | 176.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 17:00:39 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 |
| 0.00 | 1.08 | 0.00 | 0.54 | 7.16 | 214.22 | -7.30 | 80.62 | 0.1283 | -1024.0 | -808.8 | |
| 0.00 | 1.08 | 0.00 | 0.54 | 6.91 | 214.01 | -7.51 | 82.72 | 0.1314 | -786.0 | -523.6 | |
| 0.00 | 0.99 | 0.00 | 0.51 | 8.03 | 208.21 | -13.31 | 80.55 | 0.2321 | 900.0 | 726.8 | |
| 0.00 | 0.90 | 0.00 | 0.46 | 5.95 | 207.70 | -13.81 | 89.55 | 0.2385 | 883.0 | 685.2 | |
| 0.00 | 1.36 | 0.00 | 0.70 | 6.23 | 204.55 | -16.96 | 88.36 | 0.2914 | 837.0 | 682.7 | |
| 0.00 | 1.63 | 0.00 | 0.85 | 4.34 | 203.26 | -18.26 | 94.40 | 0.3146 | -832.0 | -660.1 | |
| 0.63 | 1.81 | 0.33 | 0.95 | 4.30 | 202.20 | -19.32 | 94.17 | 0.3322 | 995.4 | 836.3 | |
| 0.00 | 1.45 | 0.00 | 0.76 | 5.73 | 202.16 | -19.36 | 89.84 | 0.3313 | 874.0 | 636.3 | |
| 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. | |