SDO HMI 2011-01-04 18:58:55 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 |
| 63.18 | 379.97 | 39.86 | 239.85 | 31.28 | 188.60 | -16.83 | 23.57 | 0.6209 | -1185.7 | -355.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-04 18:58:55 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 |
| 61.31 | 375.05 | 38.62 | 236.63 | 31.26 | 188.64 | -16.79 | 23.54 | 0.6204 | -1304.0 | -359.6 | |
| 1.87 | 2.80 | 1.24 | 1.85 | 33.80 | 185.75 | -19.68 | 24.94 | 0.6660 | 691.6 | 469.2 | |
| 0.00 | 1.27 | 0.00 | 0.82 | 31.68 | 185.94 | -19.49 | 26.41 | 0.6408 | -645.0 | -553.8 | |
| 0.00 | 0.85 | 0.00 | 0.55 | 31.67 | 184.76 | -20.67 | 27.74 | 0.6479 | 514.0 | 425.0 | |
| 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. | |