SDO HMI 2013-08-18 21:59:08 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 |
| 47.86 | 304.07 | 28.93 | 183.84 | -7.05 | 139.09 | -32.14 | 112.77 | 0.5749 | 659.6 | 282.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-18 21:59:08 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 | 4.14 | 0.00 | 2.45 | -8.74 | 141.71 | -29.51 | 117.46 | 0.5508 | 814.0 | 509.8 | |
| 0.00 | 1.98 | 0.00 | 1.20 | -9.93 | 140.35 | -30.88 | 118.25 | 0.5760 | 892.0 | 795.7 | |
| 0.00 | 0.99 | 0.00 | 0.64 | -16.57 | 138.25 | -32.97 | 125.97 | 0.6469 | -691.0 | -572.7 | |
| 43.63 | 270.33 | 26.27 | 162.84 | -6.88 | 139.34 | -31.89 | 112.67 | 0.5706 | 1230.7 | 354.3 | |
| 0.00 | 0.90 | 0.00 | 0.55 | -9.60 | 139.05 | -32.18 | 116.75 | 0.5902 | -681.0 | -539.2 | |
| 0.00 | 1.89 | 0.00 | 1.17 | -10.23 | 138.50 | -32.73 | 117.31 | 0.6010 | -897.0 | -741.4 | |
| 0.00 | 1.26 | 0.00 | 0.77 | -6.76 | 137.93 | -33.30 | 111.56 | 0.5884 | 563.0 | 505.2 | |
| 0.00 | 0.99 | 0.00 | 0.64 | -13.97 | 136.69 | -34.54 | 121.31 | 0.6462 | -685.0 | -592.8 | |
| 0.00 | 2.07 | 0.00 | 1.28 | -7.10 | 137.02 | -34.21 | 111.54 | 0.6020 | 674.0 | 442.3 | |
| 0.00 | 1.71 | 0.00 | 1.12 | -14.21 | 135.61 | -35.62 | 120.86 | 0.6599 | -719.0 | -542.6 | |
| 0.00 | 1.08 | 0.00 | 0.68 | -7.27 | 135.88 | -35.34 | 111.13 | 0.6174 | -792.0 | -758.8 | |
| 4.23 | 14.84 | 2.66 | 9.31 | -6.99 | 135.79 | -35.43 | 110.66 | 0.6172 | -944.7 | -627.4 | |
| 0.00 | 0.99 | 0.00 | 0.62 | -3.88 | 134.62 | -36.61 | 105.27 | 0.6190 | -668.0 | -573.4 | |
| 0.00 | 0.90 | 0.00 | 0.57 | -3.99 | 133.97 | -37.26 | 105.14 | 0.6280 | -629.0 | -513.0 | |
| 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. | |