SDO HMI 2011-10-31 10:58:59 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 |
| 12.56 | 35.77 | 6.99 | 19.95 | 31.01 | 215.55 | 6.70 | 347.29 | 0.4612 | -732.9 | -413.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-31 10:58:59 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 |
| 5.02 | 33.52 | 2.80 | 18.66 | 30.77 | 216.18 | 7.33 | 346.13 | 0.4589 | -1102.5 | -518.9 | |
| 1.73 | -1.00 | 0.96 | -1.00 | 30.54 | 216.13 | 7.28 | 346.08 | 0.4553 | -1130.9 | 999999 | |
| 0.87 | -1.00 | 0.48 | -1.00 | 30.64 | 215.96 | 7.11 | 346.44 | 0.4562 | -1179.7 | 999999 | |
| 4.94 | -1.00 | 2.75 | -1.00 | 30.87 | 215.91 | 7.06 | 346.68 | 0.4595 | -910.1 | 999999 | |
| 0.00 | 0.95 | 0.00 | 0.54 | 33.67 | 209.11 | 0.25 | 359.57 | 0.4899 | 379.0 | 468.5 | |
| 0.00 | 1.30 | 0.00 | 0.75 | 35.25 | 207.98 | -0.88 | 1.40 | 0.5140 | 721.0 | 590.0 | |
| 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. | |