SDO HMI 2011-11-28 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 |
| 24.89 | 144.31 | 18.97 | 109.72 | 14.51 | 252.23 | 48.13 | 288.12 | 0.7608 | -664.4 | -320.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-28 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 |
| 0.00 | 0.68 | 0.00 | 0.56 | 17.30 | 255.60 | 51.50 | 290.79 | 0.8015 | -345.0 | -337.5 | |
| 23.61 | 132.08 | 18.01 | 100.81 | 14.34 | 252.48 | 48.38 | 287.83 | 0.7632 | -969.9 | -343.2 | |
| 1.28 | 1.54 | 0.96 | 1.16 | 14.63 | 251.60 | 47.51 | 288.42 | 0.7543 | -614.2 | -591.7 | |
| 0.00 | 5.22 | 0.00 | 3.93 | 17.00 | 251.20 | 47.10 | 291.60 | 0.7558 | -624.0 | -547.5 | |
| 0.00 | 1.80 | 0.00 | 1.25 | 13.72 | 247.52 | 43.43 | 288.31 | 0.7058 | 577.0 | 526.1 | |
| 0.00 | 0.51 | 0.00 | 0.35 | 16.18 | 246.38 | 42.28 | 292.10 | 0.6997 | 519.0 | 490.5 | |
| 0.00 | 1.54 | 0.00 | 1.03 | 17.63 | 243.80 | 39.70 | 295.17 | 0.6750 | 593.0 | 540.7 | |
| 0.00 | 0.94 | 0.00 | 0.63 | 18.16 | 243.58 | 39.48 | 296.01 | 0.6746 | 747.0 | 613.3 | |
| 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. | |