SDO HMI 2014-09-04 20:00:36 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 | 15.18 | 0.00 | 7.80 | 10.64 | 183.38 | 13.21 | 262.54 | 0.2606 | -513.1 | -469.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-04 20:00:36 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 | 1.43 | 0.00 | 0.75 | 3.85 | 189.89 | 19.72 | 261.27 | 0.3421 | -519.0 | -540.8 | |
| 0.00 | 1.07 | 0.00 | 0.56 | 11.55 | 188.25 | 18.09 | 284.95 | 0.3162 | -721.0 | -570.2 | |
| 0.00 | 1.16 | 0.00 | 0.61 | 11.40 | 188.02 | 17.85 | 284.66 | 0.3119 | -926.0 | -784.7 | |
| 0.00 | 0.89 | 0.00 | 0.46 | 10.61 | 187.29 | 17.12 | 282.54 | 0.2977 | -749.0 | -644.3 | |
| 0.00 | 0.89 | 0.00 | 0.46 | 10.91 | 186.54 | 16.37 | 284.02 | 0.2865 | -753.0 | -583.0 | |
| 0.00 | 1.79 | 0.00 | 0.92 | 11.19 | 186.39 | 16.22 | 285.08 | 0.2851 | -982.0 | -814.2 | |
| 0.00 | 2.32 | 0.00 | 1.20 | 10.72 | 185.95 | 15.78 | 283.76 | 0.2763 | -823.0 | -693.8 | |
| 0.00 | 1.88 | 0.00 | 0.96 | 10.74 | 185.50 | 15.33 | 284.14 | 0.2691 | -995.0 | -786.1 | |
| 0.00 | 1.16 | 0.00 | 0.59 | 12.92 | 182.50 | 12.33 | 296.08 | 0.2328 | -819.0 | -538.2 | |
| 0.00 | 0.98 | 0.00 | 0.49 | 12.12 | 171.67 | 1.51 | 343.21 | 0.0894 | 853.0 | 667.1 | |
| 0.00 | 1.61 | 0.00 | 0.80 | 12.16 | 164.22 | -5.95 | 49.54 | 0.1338 | 790.0 | 543.8 | |
| 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. | |