SDO HMI 2011-12-18 07:58:55 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 |
| 0.00 | 15.74 | 0.00 | 9.17 | -19.60 | 323.89 | 26.06 | 232.67 | 0.5237 | -255.2 | -254.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-18 07:58:55 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 | 1.19 | 0.00 | 0.72 | -20.91 | 327.99 | 30.17 | 234.19 | 0.5811 | -630.0 | -533.1 | |
| 0.00 | 1.36 | 0.00 | 0.80 | -17.30 | 326.04 | 28.21 | 238.33 | 0.5324 | 713.0 | 649.2 | |
| 0.00 | 0.77 | 0.00 | 0.47 | -23.04 | 326.58 | 28.75 | 229.86 | 0.5812 | -567.0 | -466.2 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -17.19 | 324.76 | 26.94 | 237.44 | 0.5156 | 776.0 | 630.5 | |
| 0.00 | 0.85 | 0.00 | 0.49 | -17.40 | 324.63 | 26.80 | 236.94 | 0.5154 | 777.0 | 642.6 | |
| 0.00 | 0.68 | 0.00 | 0.39 | -16.67 | 324.06 | 26.24 | 237.71 | 0.5030 | 487.0 | 407.1 | |
| 0.00 | 1.28 | 0.00 | 0.76 | -23.55 | 323.72 | 25.90 | 226.42 | 0.5548 | -592.0 | -517.3 | |
| 0.00 | 0.85 | 0.00 | 0.50 | -23.26 | 323.49 | 25.66 | 226.59 | 0.5498 | -761.0 | -648.3 | |
| 0.00 | 1.19 | 0.00 | 0.71 | -23.52 | 323.50 | 25.68 | 226.24 | 0.5522 | -556.0 | -495.2 | |
| 0.00 | 1.62 | 0.00 | 0.92 | -17.95 | 322.40 | 24.58 | 233.88 | 0.4918 | -835.0 | -718.6 | |
| 0.00 | 1.53 | 0.00 | 0.87 | -17.73 | 322.27 | 24.44 | 234.12 | 0.4884 | -809.0 | -663.6 | |
| 0.00 | 1.87 | 0.00 | 1.07 | -18.94 | 321.94 | 24.11 | 231.70 | 0.4944 | -693.0 | -548.9 | |
| 0.00 | 1.19 | 0.00 | 0.68 | -19.07 | 321.55 | 23.72 | 231.06 | 0.4909 | -627.0 | -481.5 | |
| 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. | |