SDO HMI 2013-10-18 01:59:00 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 |
| 11.60 | 53.90 | 12.97 | 58.78 | -22.23 | 154.46 | 57.55 | 241.34 | 0.8898 | 288.2 | 122.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-10-18 01:59:00 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 |
| 9.77 | 39.17 | 11.30 | 45.47 | -22.41 | 156.46 | 59.55 | 241.91 | 0.9052 | 599.5 | 140.6 | |
| 0.00 | 0.52 | 0.00 | 0.60 | -22.53 | 155.98 | 59.06 | 241.62 | 0.9023 | 707.0 | 572.2 | |
| 0.44 | 2.79 | 0.40 | 2.59 | -21.29 | 148.94 | 52.02 | 240.37 | 0.8471 | 553.0 | 496.6 | |
| 0.00 | 2.70 | 0.00 | 2.49 | -21.47 | 148.72 | 51.80 | 240.08 | 0.8459 | 549.0 | 475.8 | |
| 0.00 | 1.13 | 0.00 | 1.02 | -20.92 | 148.03 | 51.12 | 240.40 | 0.8384 | -124.0 | -203.8 | |
| 0.87 | 1.66 | 0.81 | 1.54 | -22.32 | 148.52 | 51.61 | 239.07 | 0.8474 | 580.0 | 482.7 | |
| 0.52 | 1.83 | 0.46 | 1.62 | -20.66 | 147.25 | 50.34 | 240.36 | 0.8309 | -510.0 | -419.2 | |
| 0.00 | 0.87 | 0.00 | 0.77 | -20.94 | 147.03 | 50.11 | 239.95 | 0.8301 | -448.0 | -442.0 | |
| 0.00 | 0.96 | 0.00 | 0.84 | -22.40 | 146.11 | 49.20 | 237.93 | 0.8281 | -521.0 | -431.7 | |
| 0.00 | 1.22 | 0.00 | 1.00 | -21.98 | 142.90 | 45.98 | 236.83 | 0.7989 | -464.0 | -363.5 | |
| 0.00 | 1.05 | 0.00 | 0.84 | -23.26 | 140.77 | 43.85 | 234.25 | 0.7865 | -640.0 | -477.8 | |
| 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. | |