SDO HMI 2014-04-22 20:00:35 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 |
| 0.00 | 3.64 | 0.00 | 2.36 | -17.57 | 194.44 | 38.72 | 248.20 | 0.6419 | -486.8 | -437.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-22 20:00:35 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 | 0.80 | 0.00 | 0.59 | -17.08 | 203.35 | 47.63 | 251.47 | 0.7471 | -140.0 | -228.7 | |
| 0.00 | 0.80 | 0.00 | 0.52 | -21.63 | 193.88 | 38.15 | 242.12 | 0.6520 | -478.0 | -477.4 | |
| 0.00 | 1.24 | 0.00 | 0.76 | -16.03 | 190.79 | 35.07 | 249.46 | 0.5919 | -618.0 | -466.7 | |
| 0.00 | 0.80 | 0.00 | 0.49 | -16.26 | 189.99 | 34.27 | 248.77 | 0.5821 | -711.0 | -602.6 | |
| 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. | |