SDO HMI 2012-05-10 13:59:08 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 | 8.50 | 0.00 | 5.03 | 18.13 | 221.89 | 25.62 | 311.11 | 0.5469 | 754.8 | 633.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-10 13:59:08 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 | 3.40 | 0.00 | 2.04 | 17.96 | 223.44 | 27.18 | 309.18 | 0.5626 | 720.0 | 661.1 | |
| 0.00 | 1.61 | 0.00 | 0.97 | 18.52 | 223.43 | 27.16 | 309.98 | 0.5671 | 752.0 | 635.7 | |
| 0.00 | 1.88 | 0.00 | 1.09 | 17.85 | 220.14 | 23.88 | 312.54 | 0.5249 | 830.0 | 672.9 | |
| 0.00 | 1.61 | 0.00 | 0.93 | 18.44 | 218.91 | 22.64 | 314.87 | 0.5173 | 717.0 | 522.7 | |
| 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. | |