SDO HMI 2014-04-25 14:00:35 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 |
| 0.98 | 7.29 | 0.61 | 4.62 | -9.94 | 157.59 | 38.19 | 260.38 | 0.6238 | -195.0 | -36.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 14:00:35 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 | 0.71 | 0.00 | 0.49 | -21.80 | 161.56 | 42.16 | 243.29 | 0.6999 | -620.0 | -537.5 | |
| 0.00 | 0.80 | 0.00 | 0.54 | -18.82 | 160.58 | 41.17 | 247.12 | 0.6787 | -535.0 | -449.3 | |
| 0.00 | 1.16 | 0.00 | 0.73 | -8.21 | 157.65 | 38.25 | 262.69 | 0.6200 | -670.0 | -558.5 | |
| 0.00 | 0.44 | 0.00 | 0.28 | -8.53 | 157.34 | 37.93 | 262.15 | 0.6160 | -821.0 | -716.6 | |
| 0.00 | 0.71 | 0.00 | 0.45 | -7.48 | 157.19 | 37.78 | 263.85 | 0.6132 | 287.0 | 345.8 | |
| 0.98 | 2.40 | 0.61 | 1.49 | -7.08 | 156.73 | 37.32 | 264.49 | 0.6067 | 615.4 | 507.3 | |
| 0.00 | 1.07 | 0.00 | 0.64 | -4.32 | 154.38 | 34.98 | 269.20 | 0.5739 | 695.0 | 563.5 | |
| 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. | |