SDO HMI 2014-07-29 16:00:40 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 |
| 14.22 | 30.60 | 18.64 | 39.75 | -18.31 | 237.31 | -64.11 | 112.46 | 0.9255 | -188.4 | -33.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-29 16:00:40 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 |
| 3.53 | 7.24 | 4.21 | 8.65 | -17.92 | 239.51 | -61.92 | 112.62 | 0.9111 | 443.7 | 266.4 | |
| 0.00 | 2.54 | 0.00 | 3.02 | -17.60 | 239.43 | -62.00 | 112.26 | 0.9111 | 409.0 | 345.0 | |
| 0.00 | 0.63 | 0.00 | 0.78 | -18.19 | 238.71 | -62.71 | 112.69 | 0.9168 | 179.0 | 230.6 | |
| 4.62 | 20.19 | 6.20 | 27.30 | -18.74 | 236.57 | -64.85 | 112.72 | 0.9309 | -500.7 | -241.6 | |
| 5.25 | -4.00 | 7.11 | -4.00 | -18.32 | 236.19 | -65.23 | 112.18 | 0.9325 | -452.8 | 999999 | |
| 0.82 | -4.00 | 1.12 | -4.00 | -18.60 | 235.98 | -65.44 | 112.42 | 0.9341 | -18.2 | 999999 | |
| 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. | |