SDO HMI 2014-04-17 16:00:34 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 |
| 0.00 | 16.81 | 0.00 | 9.27 | -15.23 | 200.25 | -23.72 | 114.82 | 0.4272 | -503.5 | -394.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-17 16:00:34 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 |
| 0.00 | 1.06 | 0.00 | 0.54 | -7.30 | 212.00 | -11.97 | 99.66 | 0.2097 | -897.0 | -697.2 | |
| 0.00 | 1.33 | 0.00 | 0.69 | -13.15 | 208.81 | -15.17 | 118.42 | 0.2910 | 777.0 | 714.5 | |
| 0.00 | 1.06 | 0.00 | 0.55 | -13.31 | 208.00 | -15.98 | 117.76 | 0.3041 | 732.0 | 590.8 | |
| 0.00 | 1.06 | 0.00 | 0.57 | -13.21 | 203.64 | -20.33 | 112.69 | 0.3682 | -808.0 | -585.3 | |
| 0.00 | 0.62 | 0.00 | 0.33 | -16.16 | 203.31 | -20.66 | 119.58 | 0.3914 | -758.0 | -584.7 | |
| 0.00 | 2.12 | 0.00 | 1.14 | -14.40 | 202.63 | -21.34 | 114.74 | 0.3898 | -774.0 | -555.7 | |
| 0.00 | 1.33 | 0.00 | 0.72 | -17.41 | 202.12 | -21.86 | 121.12 | 0.4167 | -803.0 | -663.4 | |
| 0.00 | 1.24 | 0.00 | 0.67 | -16.57 | 201.68 | -22.29 | 118.84 | 0.4168 | -688.0 | -603.9 | |
| 0.00 | 1.50 | 0.00 | 0.82 | -17.55 | 201.49 | -22.49 | 120.76 | 0.4262 | -837.0 | -561.5 | |
| 0.00 | 1.42 | 0.00 | 0.84 | -18.36 | 192.94 | -31.03 | 115.84 | 0.5458 | -490.0 | -389.8 | |
| 0.00 | 2.21 | 0.00 | 1.29 | -15.12 | 192.80 | -31.17 | 109.99 | 0.5338 | -683.0 | -480.0 | |
| 0.00 | 1.24 | 0.00 | 0.73 | -15.51 | 192.66 | -31.31 | 110.64 | 0.5372 | -767.0 | -626.4 | |
| 0.00 | 0.62 | 0.00 | 0.38 | -19.17 | 189.20 | -34.78 | 115.22 | 0.5978 | -550.0 | -499.3 | |
| 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. | |