SDO HMI 2011-01-08 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 | 10.11 | 0.00 | 7.37 | -13.62 | 205.60 | 46.81 | 254.94 | 0.7361 | -572.0 | -557.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-08 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 | 1.36 | 0.00 | 1.01 | -13.77 | 206.74 | 47.95 | 254.94 | 0.7492 | -530.0 | -478.2 | |
| 0.00 | 1.02 | 0.00 | 0.75 | -13.68 | 206.00 | 47.20 | 254.93 | 0.7407 | -461.0 | -349.4 | |
| 0.00 | 0.76 | 0.00 | 0.56 | -13.61 | 205.66 | 46.87 | 254.97 | 0.7368 | -556.0 | -463.6 | |
| 0.00 | 2.04 | 0.00 | 1.48 | -13.49 | 205.50 | 46.71 | 255.10 | 0.7347 | -677.0 | -549.4 | |
| 0.00 | 4.93 | 0.00 | 3.57 | -13.63 | 205.23 | 46.43 | 254.87 | 0.7318 | -636.0 | -640.9 | |
| 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. | |