SDO HMI 2014-09-07 04:00:36 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 |
| 18.57 | 117.76 | 30.66 | 198.59 | -14.42 | 209.45 | 70.11 | 252.40 | 0.9563 | 313.2 | 125.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-07 04:00:36 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 |
| 16.43 | 109.55 | 28.16 | 188.81 | -14.36 | 209.87 | 70.53 | 252.57 | 0.9586 | 436.5 | 144.5 | |
| 0.00 | 0.80 | 0.00 | 1.07 | -17.14 | 203.87 | 64.53 | 248.25 | 0.9304 | -279.0 | -254.6 | |
| 1.16 | 2.59 | 1.39 | 3.10 | -15.53 | 201.44 | 62.09 | 249.25 | 0.9122 | -173.8 | -197.9 | |
| 0.00 | 1.61 | 0.00 | 1.90 | -15.24 | 201.22 | 61.88 | 249.49 | 0.9102 | -412.0 | -400.2 | |
| 0.00 | 1.16 | 0.00 | 1.39 | -15.84 | 201.33 | 61.99 | 248.90 | 0.9121 | -363.0 | -290.7 | |
| 0.98 | 2.05 | 1.11 | 2.32 | -15.25 | 199.85 | 60.50 | 249.09 | 0.9008 | -408.4 | -298.1 | |
| 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. | |