SDO HMI 2011-11-28 13:58:56 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 |
| 23.17 | 133.53 | 20.14 | 115.62 | 14.55 | 252.23 | 54.14 | 286.95 | 0.8222 | -665.1 | -231.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-28 13:58:56 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 |
| 23.17 | 124.64 | 20.14 | 108.41 | 14.38 | 252.46 | 54.37 | 286.69 | 0.8242 | -871.7 | -250.8 | |
| 0.00 | 0.85 | 0.00 | 0.73 | 14.77 | 251.35 | 53.26 | 287.36 | 0.8141 | -681.0 | -598.3 | |
| 0.00 | 1.97 | 0.00 | 1.69 | 16.85 | 251.42 | 53.33 | 289.87 | 0.8185 | -219.0 | -271.3 | |
| 0.00 | 1.88 | 0.00 | 1.60 | 18.53 | 250.74 | 52.65 | 292.05 | 0.8154 | -272.0 | -240.9 | |
| 0.00 | 1.20 | 0.00 | 0.96 | 16.74 | 248.37 | 50.28 | 290.46 | 0.7884 | 469.0 | 420.6 | |
| 0.00 | 0.85 | 0.00 | 0.66 | 13.76 | 247.35 | 49.26 | 286.94 | 0.7716 | 413.0 | 303.2 | |
| 0.00 | 2.14 | 0.00 | 1.57 | 18.52 | 243.33 | 45.24 | 294.23 | 0.7407 | 461.0 | 421.6 | |
| 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. | |