SDO HMI 2011-11-28 19:58:56 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 |
| 0.00 | 7.19 | 0.00 | 4.50 | 16.08 | 159.46 | -35.32 | 64.92 | 0.6164 | -751.6 | -627.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-28 19:58:56 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 | 1.97 | 0.00 | 1.21 | 16.18 | 160.91 | -33.87 | 63.95 | 0.5979 | -817.0 | -652.9 | |
| 0.00 | 1.28 | 0.00 | 0.80 | 18.18 | 160.38 | -34.40 | 61.20 | 0.6148 | -725.0 | -595.9 | |
| 0.00 | 1.20 | 0.00 | 0.75 | 17.09 | 159.56 | -35.22 | 63.32 | 0.6192 | -756.0 | -657.9 | |
| 0.00 | 1.20 | 0.00 | 0.78 | 17.80 | 157.47 | -37.31 | 63.36 | 0.6479 | -665.0 | -528.2 | |
| 0.00 | 1.54 | 0.00 | 0.96 | 12.02 | 158.40 | -36.38 | 71.75 | 0.6131 | -795.0 | -680.2 | |
| 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. | |