SDO HMI 2014-07-18 22:00:40 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 |
| 4.72 | 37.02 | 2.72 | 21.37 | -21.88 | 67.52 | -16.10 | 149.95 | 0.5155 | -73.3 | 106.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-18 22:00:40 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 |
| 1.81 | 19.23 | 1.04 | 11.04 | -21.92 | 68.68 | -14.94 | 151.76 | 0.5073 | 872.5 | 738.8 | |
| 0.00 | 0.64 | 0.00 | 0.36 | -21.49 | 68.49 | -15.13 | 151.01 | 0.5030 | 871.0 | 779.1 | |
| 1.09 | 2.18 | 0.63 | 1.25 | -22.17 | 68.38 | -15.24 | 151.54 | 0.5127 | 793.8 | 603.8 | |
| 0.82 | -1.00 | 0.47 | -1.00 | -21.62 | 68.34 | -15.28 | 150.92 | 0.5059 | 924.8 | 999999 | |
| 0.00 | 3.54 | 0.00 | 2.05 | -21.94 | 66.66 | -16.95 | 148.68 | 0.5225 | -905.0 | -792.9 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -22.01 | 66.24 | -17.38 | 148.15 | 0.5268 | -751.0 | -482.0 | |
| 0.00 | 2.45 | 0.00 | 1.43 | -22.09 | 66.06 | -17.56 | 147.96 | 0.5291 | -832.0 | -762.2 | |
| 1.00 | 4.17 | 0.58 | 2.43 | -21.78 | 65.89 | -17.73 | 147.39 | 0.5267 | -887.3 | -802.8 | |
| 0.00 | 1.09 | 0.00 | 0.64 | -22.06 | 65.75 | -17.87 | 147.49 | 0.5312 | -594.0 | -439.5 | |
| 0.00 | 2.36 | 0.00 | 1.38 | -22.30 | 65.68 | -17.93 | 147.66 | 0.5346 | -754.0 | -618.8 | |
| 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. | |