SDO HMI 2011-12-10 02:58:56 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 |
| 19.10 | 83.94 | 18.67 | 81.39 | 18.48 | 103.19 | 57.23 | 291.81 | 0.8610 | -413.3 | -183.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-10 02:58:56 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 |
| 2.73 | 3.41 | 2.78 | 3.47 | 17.29 | 105.33 | 59.37 | 290.00 | 0.8764 | 443.8 | 429.5 | |
| 2.22 | 2.90 | 2.27 | 2.97 | 17.51 | 105.39 | 59.43 | 290.24 | 0.8771 | 407.2 | 324.1 | |
| 0.00 | 0.68 | 0.00 | 0.69 | 17.44 | 104.93 | 58.97 | 290.26 | 0.8734 | 509.0 | 489.0 | |
| 14.15 | 76.95 | 13.62 | 74.26 | 18.58 | 102.99 | 57.03 | 291.97 | 0.8595 | -792.7 | -203.9 | |
| 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. | |