SDO HMI 2013-08-21 16:59:08 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 |
| 50.59 | 328.10 | 25.90 | 168.09 | -6.94 | 139.39 | 5.04 | 200.10 | 0.2557 | 976.9 | 390.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-21 16:59:08 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 | 1.80 | 0.00 | 0.94 | -9.00 | 143.39 | 9.05 | 209.66 | 0.3152 | 898.0 | 713.8 | |
| 0.00 | 2.16 | 0.00 | 1.12 | -9.08 | 141.13 | 6.79 | 203.01 | 0.2999 | 781.0 | 669.1 | |
| 0.00 | 1.35 | 0.00 | 0.70 | -9.14 | 140.79 | 6.45 | 201.90 | 0.2986 | 923.0 | 588.1 | |
| 0.00 | 2.79 | 0.00 | 1.42 | -4.73 | 140.61 | 6.27 | 208.41 | 0.2298 | -901.0 | -750.7 | |
| 0.00 | 1.44 | 0.00 | 0.75 | -9.80 | 140.68 | 6.34 | 200.75 | 0.3082 | -749.0 | -562.8 | |
| 0.00 | 1.53 | 0.00 | 0.81 | -12.40 | 139.55 | 5.20 | 195.01 | 0.3435 | -826.0 | -689.6 | |
| 50.59 | 306.69 | 25.90 | 156.97 | -6.77 | 139.38 | 5.03 | 200.25 | 0.2528 | 1476.8 | 431.1 | |
| 0.00 | 1.35 | 0.00 | 0.69 | -5.05 | 139.12 | 4.77 | 201.82 | 0.2240 | -839.0 | -623.5 | |
| 0.00 | 2.34 | 0.00 | 1.25 | -14.82 | 138.94 | 4.59 | 191.82 | 0.3796 | -891.0 | -658.0 | |
| 0.00 | 1.53 | 0.00 | 0.80 | -12.01 | 138.80 | 4.45 | 193.19 | 0.3342 | -816.0 | -683.9 | |
| 0.00 | 3.77 | 0.00 | 1.93 | -7.49 | 136.75 | 2.40 | 189.49 | 0.2533 | 1013.0 | 784.3 | |
| 0.00 | 1.35 | 0.00 | 0.71 | -11.83 | 136.28 | 1.93 | 185.87 | 0.3244 | -793.0 | -655.2 | |
| 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. | |