SDO HMI 2014-05-20 08:00:38 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 |
| 7.11 | 17.10 | 8.33 | 20.58 | -18.09 | 217.27 | 65.09 | 251.05 | 0.9130 | -118.4 | 151.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 08:00:38 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 |
| 0.45 | 1.26 | 0.60 | 1.66 | -18.69 | 219.61 | 67.43 | 250.65 | 0.9287 | 376.0 | 327.6 | |
| 0.00 | 1.26 | 0.00 | 1.59 | -17.81 | 218.43 | 66.25 | 251.49 | 0.9207 | 207.0 | 227.1 | |
| 0.00 | 1.89 | 0.00 | 2.35 | -17.72 | 218.13 | 65.95 | 251.55 | 0.9187 | 511.0 | 407.2 | |
| 0.00 | 2.07 | 0.00 | 2.66 | -18.75 | 218.91 | 66.73 | 250.52 | 0.9243 | 304.0 | 211.5 | |
| 0.00 | 1.08 | 0.00 | 1.28 | -17.37 | 216.97 | 64.78 | 251.81 | 0.9106 | 168.0 | 160.4 | |
| 0.00 | 0.63 | 0.00 | 0.70 | -15.43 | 215.35 | 63.17 | 253.78 | 0.8977 | -277.0 | -353.4 | |
| 6.66 | 8.91 | 7.73 | 10.34 | -18.22 | 216.27 | 64.09 | 250.80 | 0.9064 | -351.4 | -125.0 | |
| 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. | |