SDO HMI 2014-08-23 00:00:38 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 |
| 21.21 | 121.95 | 15.99 | 90.65 | 16.63 | 27.99 | 48.29 | 286.16 | 0.7465 | -420.1 | -207.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-23 00:00:38 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 |
| 21.21 | 103.97 | 15.99 | 78.44 | 16.45 | 28.83 | 49.13 | 285.77 | 0.7559 | -852.6 | -293.9 | |
| 0.00 | 1.80 | 0.00 | 1.29 | 14.39 | 26.17 | 46.47 | 283.27 | 0.7239 | -595.0 | -514.1 | |
| 0.00 | 0.81 | 0.00 | 0.59 | 18.51 | 26.78 | 47.09 | 288.82 | 0.7360 | -554.0 | -518.7 | |
| 0.00 | 1.26 | 0.00 | 0.91 | 18.53 | 26.56 | 46.86 | 288.88 | 0.7335 | -593.0 | -462.4 | |
| 0.00 | 0.63 | 0.00 | 0.43 | 18.90 | 22.86 | 43.17 | 290.17 | 0.6918 | 537.0 | 485.4 | |
| 0.00 | 4.76 | 0.00 | 3.19 | 17.74 | 21.77 | 42.07 | 288.74 | 0.6762 | 302.0 | 430.4 | |
| 0.00 | 3.86 | 0.00 | 2.58 | 18.04 | 21.43 | 41.73 | 289.27 | 0.6727 | 429.0 | 453.0 | |
| 0.00 | 0.63 | 0.00 | 0.42 | 16.91 | 20.85 | 41.15 | 287.72 | 0.6633 | 545.0 | 492.6 | |
| 0.00 | 0.99 | 0.00 | 0.66 | 18.71 | 21.28 | 41.59 | 290.29 | 0.6725 | 512.0 | 462.6 | |
| 0.00 | 0.81 | 0.00 | 0.54 | 18.81 | 21.18 | 41.49 | 290.47 | 0.6716 | 538.0 | 420.7 | |
| 0.00 | 1.26 | 0.00 | 0.83 | 18.36 | 20.96 | 41.27 | 289.86 | 0.6678 | 613.0 | 500.8 | |
| 0.00 | 1.17 | 0.00 | 0.77 | 18.83 | 20.55 | 40.85 | 290.66 | 0.6640 | 561.0 | 476.3 | |
| 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. | |