SDO HMI 2014-01-13 09:00:24 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 |
| 0.60 | 9.12 | 0.37 | 6.05 | -17.55 | 66.31 | 39.78 | 247.02 | 0.6620 | -368.8 | -292.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-13 09:00:24 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 | 1.02 | 0.00 | 0.77 | -12.81 | 75.54 | 49.01 | 256.84 | 0.7583 | 226.0 | 383.9 | |
| 0.00 | 1.11 | 0.00 | 0.83 | -14.21 | 75.10 | 48.57 | 254.92 | 0.7551 | -637.0 | -562.7 | |
| 0.00 | 0.51 | 0.00 | 0.37 | -19.20 | 71.84 | 45.32 | 247.57 | 0.7288 | -135.0 | -247.8 | |
| 0.00 | 0.85 | 0.00 | 0.62 | -21.31 | 72.19 | 45.66 | 244.86 | 0.7384 | 539.0 | 490.2 | |
| 0.00 | 1.11 | 0.00 | 0.71 | -16.63 | 65.04 | 38.51 | 249.08 | 0.6410 | -711.0 | -565.9 | |
| 0.60 | 2.64 | 0.37 | 1.65 | -17.06 | 62.65 | 36.12 | 247.48 | 0.6124 | -758.7 | -526.2 | |
| 0.00 | 0.77 | 0.00 | 0.47 | -16.77 | 61.64 | 35.11 | 247.51 | 0.5983 | -624.0 | -573.0 | |
| 0.00 | 1.11 | 0.00 | 0.63 | -25.95 | 48.87 | 22.35 | 222.52 | 0.5079 | -705.0 | -570.5 | |
| 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. | |