SDO HMI 2011-10-29 15:59:00 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 |
| 14.91 | 72.70 | 8.52 | 41.65 | 30.83 | 216.50 | -15.98 | 28.00 | 0.5050 | -813.2 | -445.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-29 15:59:00 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 |
| 14.56 | 69.14 | 8.32 | 39.51 | 30.74 | 216.84 | -15.64 | 27.65 | 0.5014 | -1199.7 | -489.7 | |
| 0.35 | -1.00 | 0.20 | -1.00 | 30.63 | 216.39 | -16.09 | 28.42 | 0.5032 | -708.0 | 999999 | |
| 0.00 | 1.13 | 0.00 | 0.67 | 33.39 | 214.80 | -17.68 | 27.65 | 0.5485 | -583.0 | -472.5 | |
| 0.00 | 0.87 | 0.00 | 0.53 | 34.28 | 209.49 | -22.99 | 32.86 | 0.5971 | 627.0 | 551.7 | |
| 0.00 | 1.56 | 0.00 | 0.94 | 31.15 | 209.31 | -23.17 | 36.70 | 0.5656 | 606.0 | 487.5 | |
| 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. | |