SDO HMI 2011-08-11 01:59:10 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 | 16.33 | 0.00 | 8.79 | 18.49 | 223.06 | 19.96 | 303.73 | 0.3906 | -495.7 | -141.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 01:59:10 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 | 0.90 | 0.00 | 0.50 | 20.13 | 227.16 | 24.06 | 302.74 | 0.4570 | -628.0 | -476.4 | |
| 0.00 | 1.90 | 0.00 | 1.04 | 19.94 | 225.13 | 22.03 | 304.40 | 0.4291 | -589.0 | -536.9 | |
| 0.00 | 1.26 | 0.00 | 0.69 | 19.67 | 224.78 | 21.68 | 304.23 | 0.4224 | -857.0 | -681.0 | |
| 0.00 | 4.33 | 0.00 | 2.35 | 18.34 | 224.32 | 21.22 | 301.90 | 0.4064 | -938.0 | -768.5 | |
| 0.00 | 1.26 | 0.00 | 0.68 | 18.72 | 223.44 | 20.34 | 303.71 | 0.3975 | -691.0 | -575.6 | |
| 0.00 | 0.99 | 0.00 | 0.52 | 14.41 | 221.08 | 17.98 | 295.77 | 0.3334 | -750.0 | -609.3 | |
| 0.00 | 5.69 | 0.00 | 3.01 | 18.23 | 220.54 | 17.44 | 306.36 | 0.3550 | 983.0 | 841.7 | |
| 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. | |