SDO HMI 2011-11-15 14:58:58 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 |
| 15.47 | 33.17 | 8.36 | 17.91 | 8.39 | 345.92 | -22.97 | 75.34 | 0.4006 | 627.3 | 560.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-15 14:58:58 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 | 1.12 | 0.00 | 0.59 | 7.94 | 349.98 | -18.91 | 74.05 | 0.3353 | -885.0 | -644.9 | |
| 0.00 | 1.12 | 0.00 | 0.60 | 8.09 | 346.67 | -22.22 | 75.71 | 0.3880 | 624.0 | 513.5 | |
| 15.47 | 28.95 | 8.36 | 15.64 | 8.40 | 345.84 | -23.05 | 75.38 | 0.4020 | 933.2 | 720.4 | |
| 0.00 | 0.86 | 0.00 | 0.47 | 8.63 | 345.04 | -23.84 | 75.26 | 0.4151 | -595.0 | -495.3 | |
| 0.00 | 1.12 | 0.00 | 0.61 | 8.79 | 344.11 | -24.78 | 75.35 | 0.4299 | 808.0 | 668.7 | |
| 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. | |