SDO HMI 2014-05-17 03:00:38 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 |
| 0.00 | 17.71 | 0.00 | 8.94 | 8.28 | 196.27 | 1.66 | 351.23 | 0.1935 | -315.2 | -97.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-17 03:00:38 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 |
| 0.00 | 1.08 | 0.00 | 0.55 | 8.32 | 199.09 | 4.48 | 337.50 | 0.2030 | -734.0 | -506.3 | |
| 0.00 | 1.44 | 0.00 | 0.72 | 6.99 | 199.01 | 4.41 | 335.05 | 0.1816 | -938.0 | -744.5 | |
| 0.00 | 1.17 | 0.00 | 0.59 | 6.75 | 199.01 | 4.40 | 334.48 | 0.1778 | -952.0 | -774.0 | |
| 0.00 | 3.77 | 0.00 | 1.91 | 8.53 | 197.99 | 3.38 | 342.97 | 0.2001 | -792.0 | -702.0 | |
| 0.00 | 1.44 | 0.00 | 0.73 | 8.47 | 197.62 | 3.01 | 344.66 | 0.1973 | -1095.0 | -819.5 | |
| 0.00 | 1.17 | 0.00 | 0.59 | 8.56 | 197.28 | 2.67 | 346.41 | 0.1974 | -953.0 | -765.0 | |
| 0.00 | 4.04 | 0.00 | 2.04 | 8.84 | 193.76 | -0.85 | 4.29 | 0.1972 | 808.0 | 729.0 | |
| 0.00 | 1.89 | 0.00 | 0.95 | 8.50 | 193.76 | -0.85 | 4.42 | 0.1914 | 859.0 | 704.7 | |
| 0.00 | 1.71 | 0.00 | 0.86 | 7.89 | 193.39 | -1.22 | 6.69 | 0.1815 | 960.0 | 730.7 | |
| 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. | |