SDO HMI 2014-04-01 13:00:32 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 |
| 15.88 | 26.32 | 13.68 | 22.53 | 17.45 | 27.12 | -49.70 | 63.18 | 0.8174 | 326.0 | -41.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 13:00:32 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 | 0.70 | 0.00 | 0.57 | 15.92 | 28.94 | -47.87 | 64.14 | 0.7948 | -522.0 | -472.5 | |
| 0.00 | 0.79 | 0.00 | 0.65 | 15.90 | 28.52 | -48.29 | 64.35 | 0.7986 | -571.0 | -433.3 | |
| 0.00 | 2.28 | 0.00 | 1.90 | 16.21 | 27.85 | -48.96 | 64.28 | 0.8061 | -352.0 | -377.4 | |
| 15.88 | 21.41 | 13.68 | 18.44 | 17.72 | 26.93 | -49.89 | 62.95 | 0.8202 | 563.7 | 260.8 | |
| 0.00 | 1.14 | 0.00 | 0.97 | 16.59 | 27.24 | -49.57 | 64.10 | 0.8132 | -503.0 | -358.1 | |
| 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. | |