SDO HMI 2014-04-08 13:00:33 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 |
| 8.99 | 29.42 | 5.12 | 16.78 | -2.67 | 314.81 | -29.63 | 84.67 | 0.4980 | 69.7 | 54.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 13:00:33 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 | 4.49 | 0.00 | 2.53 | -1.72 | 316.25 | -28.19 | 82.33 | 0.4784 | 1073.0 | 693.0 | |
| 1.50 | 9.16 | 0.85 | 5.18 | -2.47 | 315.76 | -28.69 | 84.05 | 0.4841 | 918.8 | 763.1 | |
| 3.35 | -2.00 | 1.89 | -2.00 | -2.20 | 315.73 | -28.71 | 83.50 | 0.4852 | 862.2 | 999999 | |
| 0.00 | 0.53 | 0.00 | 0.30 | -2.55 | 315.52 | -28.93 | 84.28 | 0.4876 | 491.0 | 412.5 | |
| 0.44 | 1.59 | 0.25 | 0.90 | -2.30 | 315.25 | -29.20 | 83.84 | 0.4922 | 624.6 | 544.8 | |
| 3.70 | 10.66 | 2.13 | 6.14 | -3.36 | 313.69 | -30.76 | 86.33 | 0.5136 | -916.1 | -622.4 | |
| 0.00 | 1.23 | 0.00 | 0.71 | -2.51 | 313.71 | -30.73 | 84.69 | 0.5148 | -751.0 | -618.1 | |
| 0.00 | 0.97 | 0.00 | 0.56 | -3.65 | 313.61 | -30.84 | 86.92 | 0.5144 | -752.0 | -550.5 | |
| 0.00 | 0.79 | 0.00 | 0.46 | -3.07 | 313.35 | -31.10 | 85.84 | 0.5192 | -526.0 | -473.2 | |
| 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. | |