SDO HMI 2014-04-15 14:00:34 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 |
| 11.93 | 61.02 | 16.88 | 87.01 | -13.27 | 181.25 | -70.24 | 102.11 | 0.9383 | 67.6 | -110.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-15 14:00:34 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 |
| 8.40 | 45.01 | 11.84 | 63.78 | -13.71 | 181.38 | -70.11 | 102.57 | 0.9375 | 231.3 | -67.6 | |
| 1.50 | 4.24 | 2.06 | 5.83 | -12.74 | 182.00 | -69.48 | 101.53 | 0.9339 | -486.8 | -394.6 | |
| 0.00 | 0.27 | 0.00 | 0.37 | -12.50 | 181.70 | -69.78 | 101.28 | 0.9357 | -291.0 | -294.7 | |
| 2.03 | 10.17 | 2.98 | 15.00 | -11.75 | 180.58 | -70.90 | 100.51 | 0.9424 | -29.7 | -211.1 | |
| 0.00 | 1.33 | 0.00 | 2.03 | -12.41 | 179.67 | -71.82 | 101.23 | 0.9474 | -80.0 | -63.1 | |
| 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. | |