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 |
| 5.94 | 19.62 | 3.45 | 11.29 | 9.66 | 180.49 | 28.30 | 293.14 | 0.5106 | -205.7 | -247.3 | |
|
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 |
| 1.89 | 11.97 | 1.10 | 6.94 | 9.01 | 181.53 | 29.35 | 291.18 | 0.5212 | -942.2 | -709.9 | |
| 4.05 | -1.00 | 2.35 | -1.00 | 9.26 | 181.45 | 29.27 | 291.68 | 0.5213 | -1042.1 | 999999 | |
| 0.00 | 2.79 | 0.00 | 1.61 | 9.35 | 181.25 | 29.06 | 291.98 | 0.5189 | -916.0 | -515.5 | |
| 0.00 | 1.53 | 0.00 | 0.87 | 11.48 | 178.59 | 26.41 | 297.87 | 0.4951 | 588.0 | 385.1 | |
| 0.00 | 1.26 | 0.00 | 0.71 | 8.50 | 178.16 | 25.98 | 292.53 | 0.4709 | 725.0 | 566.1 | |
| 0.00 | 1.08 | 0.00 | 0.62 | 14.29 | 177.46 | 25.27 | 303.92 | 0.5006 | 657.0 | 559.2 | |
| 0.00 | 0.99 | 0.00 | 0.54 | 10.00 | 175.09 | 22.91 | 298.27 | 0.4372 | 693.0 | 537.7 | |
| 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. | |