SDO HMI 2011-11-21 12:58:57 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 |
| 27.42 | 183.79 | 36.89 | 248.04 | 17.43 | 223.00 | -67.90 | 72.07 | 0.9307 | -281.3 | -36.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-21 12:58:57 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 | 1.37 | 0.00 | 1.75 | 18.59 | 224.34 | -66.55 | 70.69 | 0.9231 | -225.0 | -233.4 | |
| 18.77 | 156.36 | 24.76 | 208.61 | 17.53 | 223.39 | -67.51 | 71.93 | 0.9284 | -601.0 | -98.2 | |
| 3.94 | -2.00 | 5.30 | -2.00 | 17.55 | 222.96 | -67.93 | 71.94 | 0.9310 | 205.8 | 999999 | |
| 0.00 | 1.03 | 0.00 | 1.49 | 18.77 | 221.40 | -69.50 | 70.77 | 0.9408 | -116.0 | -115.8 | |
| 4.71 | 25.03 | 6.83 | 36.19 | 16.71 | 221.20 | -69.70 | 72.97 | 0.9410 | 467.0 | 351.1 | |
| 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. | |