SDO HMI 2013-08-18 18:59:08 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 |
| 45.97 | 284.44 | 28.32 | 175.18 | -7.00 | 139.12 | -33.77 | 111.65 | 0.5958 | 728.0 | 309.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-18 18:59:08 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 | 0.81 | 0.00 | 0.49 | -8.85 | 141.76 | -31.12 | 116.36 | 0.5721 | 440.0 | 443.2 | |
| 0.00 | 1.26 | 0.00 | 0.76 | -8.62 | 141.50 | -31.39 | 115.79 | 0.5741 | 658.0 | 550.9 | |
| 0.00 | 2.61 | 0.00 | 1.61 | -9.86 | 140.28 | -32.61 | 116.82 | 0.5971 | 873.0 | 716.6 | |
| 41.47 | 257.18 | 25.45 | 157.87 | -6.88 | 139.33 | -33.56 | 111.58 | 0.5924 | 1185.9 | 364.0 | |
| 0.00 | 0.81 | 0.00 | 0.51 | -9.76 | 138.96 | -33.92 | 115.75 | 0.6128 | -673.0 | -491.8 | |
| 1.26 | 2.97 | 0.79 | 1.87 | -10.05 | 138.44 | -34.44 | 115.82 | 0.6209 | -793.4 | -618.4 | |
| 0.00 | 2.07 | 0.00 | 1.31 | -7.10 | 137.07 | -35.81 | 110.59 | 0.6225 | 752.0 | 570.3 | |
| 0.00 | 0.72 | 0.00 | 0.48 | -13.95 | 136.12 | -36.77 | 119.71 | 0.6711 | -615.0 | -522.8 | |
| 0.00 | 1.08 | 0.00 | 0.68 | -6.37 | 136.83 | -36.05 | 109.35 | 0.6221 | 383.0 | 253.3 | |
| 0.00 | 0.90 | 0.00 | 0.61 | -14.19 | 135.52 | -37.36 | 119.63 | 0.6792 | -619.0 | -532.8 | |
| 0.00 | 0.45 | 0.00 | 0.29 | -6.37 | 136.34 | -36.55 | 109.09 | 0.6285 | 284.0 | 270.4 | |
| 0.00 | 1.53 | 0.00 | 0.97 | -6.54 | 136.17 | -36.71 | 109.26 | 0.6314 | -258.0 | -233.0 | |
| 1.08 | 11.15 | 0.69 | 7.15 | -7.02 | 135.98 | -36.91 | 109.87 | 0.6361 | -921.8 | -706.2 | |
| 0.00 | 0.90 | 0.00 | 0.58 | -6.44 | 135.84 | -37.05 | 108.93 | 0.6352 | -490.0 | -514.4 | |
| 2.16 | -13.00 | 1.39 | -13.00 | -6.88 | 135.72 | -37.17 | 109.53 | 0.6387 | -740.9 | 999999 | |
| 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. | |