SDO HMI 2014-09-17 22:00:34 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 |
| 14.02 | 33.62 | 11.71 | 27.65 | -21.03 | 311.74 | -45.66 | 123.28 | 0.8001 | -233.4 | 51.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-17 22:00:34 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 |
| 1.15 | 2.93 | 0.89 | 2.27 | -20.81 | 314.97 | -42.44 | 124.82 | 0.7706 | 809.2 | 698.8 | |
| 0.80 | 2.75 | 0.62 | 2.15 | -20.86 | 314.42 | -42.98 | 124.55 | 0.7758 | 728.0 | 480.5 | |
| 0.98 | 2.93 | 0.76 | 2.29 | -20.64 | 314.23 | -43.17 | 124.19 | 0.7763 | 690.5 | 582.8 | |
| 0.00 | 4.97 | 0.00 | 3.92 | -20.58 | 313.77 | -43.64 | 123.86 | 0.7802 | 698.0 | 459.4 | |
| 0.00 | 0.35 | 0.00 | 0.28 | -20.36 | 312.90 | -44.50 | 123.12 | 0.7868 | 495.0 | 433.0 | |
| 0.00 | 0.44 | 0.00 | 0.37 | -21.56 | 311.28 | -46.12 | 123.58 | 0.8069 | -616.0 | -498.2 | |
| 0.80 | 2.13 | 0.67 | 1.79 | -21.35 | 310.66 | -46.74 | 123.02 | 0.8112 | -731.4 | -627.4 | |
| 1.06 | 15.08 | 0.90 | 12.86 | -21.41 | 310.35 | -47.05 | 122.93 | 0.8141 | -661.8 | -438.6 | |
| 0.80 | 2.04 | 0.67 | 1.72 | -20.78 | 310.24 | -47.17 | 122.17 | 0.8123 | -771.0 | -678.8 | |
| 4.70 | -8.00 | 4.03 | -8.00 | -21.42 | 309.92 | -47.49 | 122.72 | 0.8178 | -481.1 | 999999 | |
| 3.73 | -8.00 | 3.17 | -8.00 | -21.10 | 310.00 | -47.40 | 122.42 | 0.8157 | -683.0 | 999999 | |
| 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. | |