SDO HMI 2014-05-17 01:00:38 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 | 17.89 | 0.00 | 9.05 | 8.59 | 195.53 | -0.17 | 0.77 | 0.1968 | -9.0 | 117.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-17 01:00:38 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 | 2.43 | 0.00 | 1.23 | 8.27 | 198.99 | 3.29 | 343.06 | 0.1955 | -743.0 | -421.9 | |
| 0.00 | 1.26 | 0.00 | 0.64 | 8.64 | 198.17 | 2.46 | 347.57 | 0.1981 | -916.0 | -699.9 | |
| 0.00 | 2.16 | 0.00 | 1.09 | 8.51 | 197.95 | 2.24 | 348.50 | 0.1952 | -994.0 | -852.5 | |
| 0.00 | 1.80 | 0.00 | 0.91 | 8.42 | 197.52 | 1.81 | 350.58 | 0.1923 | -952.0 | -728.7 | |
| 0.00 | 4.13 | 0.00 | 2.09 | 8.80 | 193.78 | -1.92 | 9.65 | 0.1990 | 867.0 | 707.8 | |
| 0.00 | 0.90 | 0.00 | 0.45 | 8.55 | 193.72 | -1.98 | 10.16 | 0.1950 | 864.0 | 653.2 | |
| 0.00 | 1.62 | 0.00 | 0.82 | 7.90 | 193.33 | -2.38 | 12.88 | 0.1854 | 1007.0 | 838.2 | |
| 0.00 | 3.59 | 0.00 | 1.82 | 8.98 | 193.29 | -2.42 | 11.85 | 0.2037 | 795.0 | 633.8 | |
| 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. | |