SDO HMI 2014-03-30 01:00:31 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 |
| 0.44 | 18.58 | 0.25 | 10.72 | 17.69 | 90.58 | -19.19 | 37.62 | 0.5150 | -801.9 | -685.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 01:00:31 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 |
| 0.44 | 2.72 | 0.25 | 1.56 | 17.78 | 91.28 | -18.49 | 36.50 | 0.5099 | -955.4 | -788.9 | |
| 0.00 | 2.80 | 0.00 | 1.61 | 17.43 | 91.15 | -18.62 | 37.12 | 0.5068 | -915.0 | -751.3 | |
| 0.00 | 1.58 | 0.00 | 0.91 | 17.83 | 91.07 | -18.70 | 36.74 | 0.5122 | -803.0 | -655.3 | |
| 0.00 | 1.14 | 0.00 | 0.66 | 18.03 | 90.95 | -18.82 | 36.67 | 0.5156 | -711.0 | -646.5 | |
| 0.00 | 2.98 | 0.00 | 1.72 | 17.95 | 90.56 | -19.21 | 37.34 | 0.5182 | -694.0 | -679.8 | |
| 0.00 | 0.96 | 0.00 | 0.56 | 17.86 | 90.34 | -19.43 | 37.76 | 0.5192 | -683.0 | -604.1 | |
| 0.00 | 1.58 | 0.00 | 0.91 | 17.70 | 90.22 | -19.55 | 38.13 | 0.5184 | -941.0 | -831.0 | |
| 0.00 | 1.75 | 0.00 | 1.01 | 17.57 | 90.00 | -19.77 | 38.59 | 0.5190 | -923.0 | -756.2 | |
| 0.00 | 3.07 | 0.00 | 1.78 | 17.39 | 89.69 | -20.08 | 39.26 | 0.5199 | -553.0 | -494.5 | |
| 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. | |