SDO HMI 2014-04-01 12:00:32 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 |
| 0.00 | 4.91 | 0.00 | 3.23 | -24.13 | 116.24 | 38.88 | 240.33 | 0.6613 | 82.2 | 254.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 12:00:32 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 | 1.40 | 0.00 | 0.94 | -23.71 | 117.89 | 40.53 | 241.68 | 0.6782 | 638.0 | 553.0 | |
| 0.00 | 1.40 | 0.00 | 0.93 | -23.91 | 116.81 | 39.45 | 240.95 | 0.6668 | 573.0 | 541.4 | |
| 0.00 | 0.88 | 0.00 | 0.58 | -24.13 | 116.89 | 39.53 | 240.67 | 0.6686 | 601.0 | 464.0 | |
| 0.00 | 0.79 | 0.00 | 0.50 | -24.41 | 113.16 | 35.80 | 238.47 | 0.6272 | -707.0 | -586.7 | |
| 0.00 | 0.44 | 0.00 | 0.28 | -25.76 | 112.92 | 35.56 | 236.34 | 0.6315 | -694.0 | -638.6 | |
| 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. | |