| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 45.29 | 298.91 | 33.60 | 221.35 | 18.11 | 166.09 | 42.85 | 299.62 | 0.7457 | -898.3 | -270.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 07:00:35 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 |
| 36.39 | 287.17 | 26.98 | 213.04 | 17.98 | 166.23 | 42.99 | 299.38 | 0.7465 | -1159.7 | -306.7 | |
| 8.63 | -1.00 | 6.42 | -1.00 | 18.53 | 166.18 | 42.94 | 300.08 | 0.7487 | -955.4 | 999999 | |
| 0.27 | -1.00 | 0.20 | -1.00 | 18.57 | 165.76 | 42.52 | 300.35 | 0.7447 | -881.3 | 999999 | |
| 0.00 | 2.31 | 0.00 | 1.67 | 19.12 | 163.84 | 40.59 | 302.10 | 0.7280 | 541.0 | 433.3 | |
| 0.00 | 4.09 | 0.00 | 2.89 | 18.06 | 163.07 | 39.83 | 301.24 | 0.7145 | 505.0 | 440.2 | |
| 0.00 | 3.83 | 0.00 | 2.69 | 18.09 | 162.87 | 39.63 | 301.38 | 0.7125 | 696.0 | 601.7 | |
| 0.00 | 0.62 | 0.00 | 0.44 | 18.70 | 162.75 | 39.51 | 302.22 | 0.7147 | 441.0 | 438.3 | |
| 0.00 | 0.89 | 0.00 | 0.62 | 19.13 | 162.13 | 38.89 | 303.14 | 0.7107 | 724.0 | 609.1 | |
| 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. | |