SDO HMI 2011-10-29 23:59:00 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 |
| 15.69 | 28.16 | 8.32 | 14.86 | 14.71 | 245.46 | 17.40 | 302.18 | 0.3427 | -616.0 | -219.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-29 23:59:00 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 |
| 12.74 | 14.91 | 6.78 | 7.93 | 14.47 | 247.36 | 19.30 | 298.70 | 0.3664 | -974.3 | -700.6 | |
| 0.00 | 1.04 | 0.00 | 0.55 | 14.04 | 246.32 | 18.25 | 298.85 | 0.3484 | -766.0 | -629.1 | |
| 0.00 | 0.69 | 0.00 | 0.37 | 15.09 | 245.44 | 17.37 | 302.70 | 0.3441 | -659.0 | -518.5 | |
| 2.95 | 7.71 | 1.54 | 4.04 | 14.39 | 244.35 | 16.29 | 302.43 | 0.3233 | -1020.9 | -663.6 | |
| 0.00 | 2.25 | 0.00 | 1.16 | 16.48 | 239.97 | 11.91 | 316.27 | 0.2875 | 946.0 | 755.7 | |
| 0.00 | 1.56 | 0.00 | 0.81 | 16.39 | 239.62 | 11.55 | 316.89 | 0.2825 | 1068.0 | 848.3 | |
| 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. | |