SDO HMI 2011-02-28 19:58:58 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 |
| 17.49 | 53.26 | 9.53 | 29.15 | -23.03 | 180.43 | -20.22 | 131.36 | 0.4252 | -88.0 | -167.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-28 19:58:58 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 |
| 3.45 | 6.89 | 1.84 | 3.69 | -21.61 | 183.29 | -17.36 | 132.48 | 0.3777 | 1077.1 | 791.4 | |
| 0.00 | 3.19 | 0.00 | 1.73 | -22.37 | 181.40 | -19.25 | 131.32 | 0.4076 | 898.0 | 587.6 | |
| 0.00 | 1.12 | 0.00 | 0.61 | -22.88 | 181.08 | -19.56 | 131.90 | 0.4162 | -868.0 | -711.6 | |
| 0.00 | 5.26 | 0.00 | 2.85 | -22.05 | 181.17 | -19.47 | 130.38 | 0.4073 | 921.0 | 762.5 | |
| 0.00 | 0.52 | 0.00 | 0.28 | -22.59 | 180.72 | -19.93 | 130.85 | 0.4178 | -117.0 | -116.7 | |
| 7.15 | 9.05 | 3.88 | 4.91 | -21.85 | 180.79 | -19.85 | 129.48 | 0.4101 | 840.7 | 874.3 | |
| 0.00 | 1.72 | 0.00 | 0.94 | -23.20 | 180.55 | -20.09 | 131.82 | 0.4254 | -835.0 | -655.3 | |
| 0.00 | 1.38 | 0.00 | 0.76 | -23.59 | 180.25 | -20.39 | 132.16 | 0.4327 | -783.0 | -551.5 | |
| 0.00 | 0.86 | 0.00 | 0.48 | -24.97 | 179.70 | -20.94 | 133.97 | 0.4521 | -712.0 | -606.9 | |
| 0.00 | 0.95 | 0.00 | 0.53 | -24.33 | 179.39 | -21.25 | 132.46 | 0.4495 | -813.0 | -702.0 | |
| 3.19 | 21.11 | 1.76 | 11.70 | -24.08 | 179.40 | -21.24 | 132.02 | 0.4471 | -1047.4 | -801.1 | |
| 2.58 | -11.00 | 1.43 | -11.00 | -24.00 | 179.07 | -21.58 | 131.48 | 0.4503 | -1020.4 | 999999 | |
| 0.00 | 1.21 | 0.00 | 0.67 | -24.96 | 178.79 | -21.86 | 132.85 | 0.4623 | -622.0 | -511.4 | |
| 1.12 | -11.00 | 0.62 | -11.00 | -24.02 | 178.82 | -21.83 | 131.22 | 0.4534 | -1035.2 | 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. | |